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Urban heat island

Index Urban heat island

An urban heat island (UHI) is an urban area or metropolitan area that is significantly warmer than its surrounding rural areas due to human activities. [1]

184 relations: Acute respiratory distress syndrome, Air conditioning, Air pollution, Albedo, American cliff swallow, American Meteorological Society, Ant, Anticholinergic, Arizona State University, Asphalt, Atmosphere, Atmospheric pressure, Autocorrelation, Barbiturate, Barcelona, BBC News, Berkeley Earth, Berkeley, California, Blog, Boundary layer, California Air Resources Board, Carbon dioxide, Carbon monoxide, Cedar Rapids, Iowa, Census, Centers for Disease Control and Prevention, Chicago, Chives, Climate change, Cloud, Cloud cover, Common house gecko, Concrete, Construction, Convection, Deciduous, Dementia, Denver, Depression (mood), Disseminated intravascular coagulation, Diuretic, Earth's energy budget, Ecosystem, Ectotherm, Emission intensity, Emissivity, Environmental justice, Evapotranspiration, Evolution, Fog, ..., Foraging, Gavin Schmidt, Glendale, California, Global warming, Google Maps, Grant (money), Green belt, Green Building Initiative, Green parking lot, Green roof, Greenhouse gas, Grey-headed flying fox, Growing season, Health, Heat capacity, Heat cramps, Heat exhaustion, Heat stroke, Heat syncope, Heat wave, Homogenization (climate), Humidity, Instrumental temperature record, Intergovernmental Panel on Climate Change, Inversion (meteorology), Invertebrate, IPCC Fourth Assessment Report, IPCC Third Assessment Report, Joseph J. Romm, Journal of Climate, Landscaping, Lavandula, Lawrence Hall of Science, Leadership in Energy and Environmental Design, Local ordinance, Los Angeles, Los Angeles Basin, Low-carbon fuel standard, Luke Howard, Macmillan Publishers (United States), Mediterranean climate, Megalopolis, Melbourne, Mesoscale meteorology, Metropolitan area, Miami, Microscale meteorology, Moscow, NASA, Natural selection, Nature (journal), New York City, Nitrogen oxide, Nonprofit organization, Oak, Oregano, Ozone, Parkinson's disease, Particulates, Patrick Michaels, Permeable paving, Phoenix, Arizona, Platanus racemosa, Pollution, Population density, Precipitation, Proceedings of the National Academy of Sciences of the United States of America, Procurement, Profit (economics), Proportionality (law), Prune, Pruning, Pusan National University, Quercus agrifolia, Quercus lobata, Raleigh, North Carolina, Reflective surfaces (climate engineering), Refrigeration, Regression analysis, Renewable energy, Ross McKitrick, Rural area, Sacramento Municipal Utility District, Satellite imagery, Science Daily, Scrub oak, Social network, Solar irradiance, Solar power, Sowing, Spain, State Implementation Plan, Stormwater, Street canyon, Summer, Surface weather observation, Tampa, Florida, Temperature, The Economist, The Guardian, Thermal conductivity, Thermoregulation, Time constant, Tornado, Tree planting, TreePeople, Troposphere, Tropospheric ozone, Umbellularia, United States Department of Energy, United States dollar, United States Environmental Protection Agency, University of California, Berkeley, University of Cincinnati, University of Melbourne, Urban area, Urban climatology, Urban dust dome, Urban heat island, Urban reforestation, Urban sprawl, Urban thermal plume, Urbanization, Vegetation, Victoria (Australia), Visalia, California, Volatile organic compound, Waste heat, Wealth, Weather station, Wildlife, Wind, Wind speed, Winter. Expand index (134 more) »

Acute respiratory distress syndrome

Acute respiratory distress syndrome (ARDS) is a medical condition occurring in critically ill or critically wounded patients characterized by widespread inflammation in the lungs.

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Air conditioning

Air conditioning (often referred to as AC, A/C, or air con) is the process of removing heat and moisture from the interior of an occupied space, to improve the comfort of occupants.

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Air pollution

Air pollution occurs when harmful or excessive quantities of substances including gases, particulates, and biological molecules are introduced into Earth's atmosphere.

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Albedo

Albedo (albedo, meaning "whiteness") is the measure of the diffuse reflection of solar radiation out of the total solar radiation received by an astronomical body (e.g. a planet like Earth).

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American cliff swallow

The American cliff swallow (Petrochelidon pyrrhonota) is a member of the passerine bird family Hirundinidae consisting of both swallow and martin species.

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American Meteorological Society

The American Meteorological Society (AMS) is the premier scientific and professional organization in the United States promoting and disseminating information about the atmospheric, oceanic, and hydrologic sciences. Its mission is to advance the atmospheric and related sciences, technologies, applications, and services for the benefit of society.

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Ant

Ants are eusocial insects of the family Formicidae and, along with the related wasps and bees, belong to the order Hymenoptera.

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Anticholinergic

An anticholinergic agent is a substance that blocks the neurotransmitter acetylcholine in the central and the peripheral nervous system.

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Arizona State University

Arizona State University (commonly referred to as ASU or Arizona State) is a public metropolitan research university on five campuses across the Phoenix metropolitan area, and four regional learning centers throughout Arizona.

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Asphalt

Asphalt, also known as bitumen, is a sticky, black, and highly viscous liquid or semi-solid form of petroleum.

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Atmosphere

An atmosphere is a layer or a set of layers of gases surrounding a planet or other material body, that is held in place by the gravity of that body.

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Atmospheric pressure

Atmospheric pressure, sometimes also called barometric pressure, is the pressure within the atmosphere of Earth (or that of another planet).

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Autocorrelation

Autocorrelation, also known as serial correlation, is the correlation of a signal with a delayed copy of itself as a function of delay.

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Barbiturate

A barbiturate is a drug that acts as a central nervous system depressant, and can therefore produce a wide spectrum of effects, from mild sedation to death.

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Barcelona

Barcelona is a city in Spain.

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BBC News

BBC News is an operational business division of the British Broadcasting Corporation (BBC) responsible for the gathering and broadcasting of news and current affairs.

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Berkeley Earth

Berkeley Earth is a Berkeley, California based independent 501(c)(3) non-profit focused on land temperature data analysis for climate science.

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Berkeley, California

Berkeley is a city on the east shore of San Francisco Bay in northern Alameda County, California.

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Blog

A blog (a truncation of the expression "weblog") is a discussion or informational website published on the World Wide Web consisting of discrete, often informal diary-style text entries ("posts").

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Boundary layer

In physics and fluid mechanics, a boundary layer is an important concept and refers to the layer of fluid in the immediate vicinity of a bounding surface where the effects of viscosity are significant.

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California Air Resources Board

The California Air Resources Board (CARB or ARB) is the "clean air agency" in the government of California.

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Carbon dioxide

Carbon dioxide (chemical formula) is a colorless gas with a density about 60% higher than that of dry air.

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Carbon monoxide

Carbon monoxide (CO) is a colorless, odorless, and tasteless gas that is slightly less dense than air.

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Cedar Rapids, Iowa

Cedar Rapids is the second-largest city in Iowa and is the county seat of Linn County.

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Census

A census is the procedure of systematically acquiring and recording information about the members of a given population.

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Centers for Disease Control and Prevention

The Centers for Disease Control and Prevention (CDC) is the leading national public health institute of the United States.

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Chicago

Chicago, officially the City of Chicago, is the third most populous city in the United States, after New York City and Los Angeles.

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Chives

Chives, scientific name Allium schoenoprasum, is an edible species of the genus Allium.

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Climate change

Climate change is a change in the statistical distribution of weather patterns when that change lasts for an extended period of time (i.e., decades to millions of years).

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Cloud

In meteorology, a cloud is an aerosol consisting of a visible mass of minute liquid droplets, frozen crystals, or other particles suspended in the atmosphere of a planetary body.

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Cloud cover

'Cloud cover' (also known as 'cloudiness', 'cloudage', or 'cloud amount') refers to the fraction of the sky obscured by clouds when observed from a particular location.

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Common house gecko

The common house gecko (Hemidactylus frenatus) (not to be confused with the Mediterranean species Hemidactylus turcicus known as Mediterranean house gecko), is a reptile native of Southeast Asia.

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Concrete

Concrete, usually Portland cement concrete, is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens over time—most frequently a lime-based cement binder, such as Portland cement, but sometimes with other hydraulic cements, such as a calcium aluminate cement.

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Construction

Construction is the process of constructing a building or infrastructure.

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Convection

Convection is the heat transfer due to bulk movement of molecules within fluids such as gases and liquids, including molten rock (rheid).

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Deciduous

In the fields of horticulture and botany, the term deciduous (/dɪˈsɪdʒuəs/) means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed leaves, usually in the autumn; to the shedding of petals, after flowering; and to the shedding of ripe fruit.

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Dementia

Dementia is a broad category of brain diseases that cause a long-term and often gradual decrease in the ability to think and remember that is great enough to affect a person's daily functioning.

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Denver

Denver, officially the City and County of Denver, is the capital and most populous municipality of the U.S. state of Colorado.

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Depression (mood)

Depression is a state of low mood and aversion to activity that can affect a person's thoughts, behavior, tendencies, feelings, and sense of well-being.

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Disseminated intravascular coagulation

Disseminated intravascular coagulation (DIC) is a condition in which blood clots form throughout the body, blocking small blood vessels.

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Diuretic

A diuretic is any substance that promotes diuresis, the increased production of urine.

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Earth's energy budget

Earth's energy budget accounts for the balance between energy Earth receives from the Sun, energy Earth radiates back into outer space after having been distributed throughout the five components of Earth's climate system and having thus powered the so-called "Earth’s heat engine".

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Ecosystem

An ecosystem is a community made up of living organisms and nonliving components such as air, water, and mineral soil.

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Ectotherm

An ectotherm (from the Greek ἐκτός (ektós) "outside" and θερμός (thermós) "hot"), is an organism in which internal physiological sources of heat are of relatively small or quite negligible importance in controlling body temperature.

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Emission intensity

An emission intensity (also carbon intensity, C.I.) is the emission rate of a given pollutant relative to the intensity of a specific activity, or an industrial production process; for example grams of carbon dioxide released per megajoule of energy produced, or the ratio of greenhouse gas emissions produced to gross domestic product (GDP).

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Emissivity

The emissivity of the surface of a material is its effectiveness in emitting energy as thermal radiation.

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Environmental justice

Environmental justice emerged as a concept in the United States in the early 1980s.

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Evapotranspiration

Evapotranspiration (ET) is the sum of evaporation and plant transpiration from the Earth's land and ocean surface to the atmosphere.

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Evolution

Evolution is change in the heritable characteristics of biological populations over successive generations.

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Fog

Fog is a visible aerosol consisting of minute water droplets or ice crystals suspended in the air at or near the Earth's surface.

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Foraging

Foraging is searching for wild food resources.

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Gavin Schmidt

Gavin A. Schmidt is a climatologist, climate modeler and Director of the NASA Goddard Institute for Space Studies (GISS) in New York, and co-founder of the award-winning climate science blog RealClimate.

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Glendale, California

Glendale is a city in Los Angeles County, California, United States.

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Global warming

Global warming, also referred to as climate change, is the observed century-scale rise in the average temperature of the Earth's climate system and its related effects.

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Google Maps

Google Maps is a web mapping service developed by Google.

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Grant (money)

Grants are non-repayable funds or products disbursed or gifted by one party (grant makers), often a government department, corporation, foundation or trust, to a recipient, often (but not always) a nonprofit entity, educational institution, business or an individual.

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Green belt

A green belt or greenbelt is a policy and land use designation used in land use planning to retain areas of largely undeveloped, wild, or agricultural land surrounding or neighbouring urban areas.

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Green Building Initiative

Green Building Initiative (GBI) is a 501(c)(3) nonprofit organization that administers green building assessment and certification services in the United States.

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Green parking lot

Green parking lots are a form of parking lot designed to be environmentally more sustainable.

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Green roof

A green roof or living roof is a roof of a building that is partially or completely covered with vegetation and a growing medium, planted over a waterproofing membrane.

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Greenhouse gas

A greenhouse gas is a gas in an atmosphere that absorbs and emits radiant energy within the thermal infrared range.

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Grey-headed flying fox

The grey-headed flying fox (Pteropus poliocephalus) is a megabat native to Australia.

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Growing season

The growing season is the part of the year during which local weather conditions (i.e. rainfall and temperature) permit normal plant growth.

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Health

Health is the ability of a biological system to acquire, convert, allocate, distribute, and utilize energy with maximum efficiency.

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Heat capacity

Heat capacity or thermal capacity is a measurable physical quantity equal to the ratio of the heat added to (or removed from) an object to the resulting temperature change.

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Heat cramps

Heat cramps, a type of heat illness, are muscle spasms that result from loss of large amount of salt and water through exercise.

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Heat exhaustion

Heat exhaustion is a severe form of heat illness.

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Heat stroke

Heat stroke, also known as sun stroke, is a type of severe heat illness that results in a body temperature greater than and confusion.

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Heat syncope

Heat syncope is fainting or dizziness as a result of overheating (syncope is the medical term for fainting).

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Heat wave

A heat wave is a period of excessively hot weather, which may be accompanied by high humidity, especially in oceanic climate countries.

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Homogenization (climate)

Homogenization in climate research means the removal of non-climatic changes.

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Humidity

Humidity is the amount of water vapor present in the air.

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Instrumental temperature record

The instrumental temperature record provides the temperature of Earth's climate system from the historical network of in situ measurements of surface air temperatures and ocean surface temperatures.

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Intergovernmental Panel on Climate Change

The Intergovernmental Panel on Climate Change (IPCC) is a scientific and intergovernmental body under the auspices of the United Nations, set up at the request of member governments, dedicated to the task of providing the world with an objective, scientific view of climate change and its political and economic impacts.

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Inversion (meteorology)

In meteorology, an inversion is a deviation from the normal change of an atmospheric property with altitude.

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Invertebrate

Invertebrates are animals that neither possess nor develop a vertebral column (commonly known as a backbone or spine), derived from the notochord.

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IPCC Fourth Assessment Report

Climate Change 2007, the Fourth Assessment Report (AR4) of the United Nations Intergovernmental Panel on Climate Change (IPCC), is the fourth in a series of reports intended to assess scientific, technical and socio-economic information concerning climate change, its potential effects, and options for adaptation and mitigation.

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IPCC Third Assessment Report

The IPCC Third Assessment Report (TAR), Climate Change 2001, is an assessment of available scientific and socio-economic information on climate change by the IPCC.

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Joseph J. Romm

Joseph J. Romm (born June 27, 1960) is an American author, blogger, physicist and climate expert who advocates reducing greenhouse gas emissions and global warming and increasing energy security through energy efficiency, green energy technologies and green transportation technologies.

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Journal of Climate

The Journal of Climate (JCLI) is a scientific journal published semi-monthly by the American Meteorological Society.

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Landscaping

Landscaping refers to any activity that modifies the visible features of an area of land, including.

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Lavandula

Lavandula (common name lavender) is a genus of 47 known species of flowering plants in the mint family, Lamiaceae.

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Lawrence Hall of Science

The Lawrence Hall of Science is a public science center that offers hands-on science exhibits, designs curriculum, aids professional development, and offers after school science resources to students of all ages.

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Leadership in Energy and Environmental Design

Leadership in Energy and Environmental Design (LEED) is one of the most popular green building certification programs used worldwide.

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Local ordinance

A local ordinance is a law usually found in a code of laws for a political division smaller than a state or nation, i.e., a local government such as a municipality, county, parish, prefecture, etc.

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Los Angeles

Los Angeles (Spanish for "The Angels";; officially: the City of Los Angeles; colloquially: by its initials L.A.) is the second-most populous city in the United States, after New York City.

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Los Angeles Basin

The Los Angeles Basin is a sedimentary basin located in southern California, in a region known as the Peninsular Ranges.

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Low-carbon fuel standard

A low-carbon fuel standard (LCFS) is a rule enacted to reduce carbon intensity in transportation fuels as compared to conventional petroleum fuels, such as gasoline and diesel.

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Luke Howard

Luke Howard, FRS (28 November 1772 – 21 March 1864) was a British manufacturing chemist and an amateur meteorologist with broad interests in science.

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Macmillan Publishers (United States)

Macmillan Publishers USA was the former name of a now mostly defunct American publishing company.

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Mediterranean climate

A Mediterranean climate or dry summer climate is characterized by rainy winters and dry summers.

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Megalopolis

A megalopolis (sometimes called a megapolis; also megaregion, or supercity) is typically defined as a chain of roughly adjacent metropolitan areas, which may be somewhat separated or may merge into a continuous urban region.

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Melbourne

Melbourne is the state capital of Victoria and the second-most populous city in Australia and Oceania.

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Mesoscale meteorology

Mesoscale meteorology is the study of weather systems smaller than synoptic scale systems but larger than microscale and storm-scale cumulus systems.

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Metropolitan area

A metropolitan area, sometimes referred to as a metro area or commuter belt, is a region consisting of a densely populated urban core and its less-populated surrounding territories, sharing industry, infrastructure, and housing.

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Miami

Miami is a major port city on the Atlantic coast of south Florida in the southeastern United States.

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Microscale meteorology

Microscale meteorology is the study of short-lived atmospheric phenomena smaller than mesoscale, about 1 km or less.

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Moscow

Moscow (a) is the capital and most populous city of Russia, with 13.2 million residents within the city limits and 17.1 million within the urban area.

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NASA

The National Aeronautics and Space Administration (NASA) is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and aerospace research.

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Natural selection

Natural selection is the differential survival and reproduction of individuals due to differences in phenotype.

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Nature (journal)

Nature is a British multidisciplinary scientific journal, first published on 4 November 1869.

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New York City

The City of New York, often called New York City (NYC) or simply New York, is the most populous city in the United States.

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Nitrogen oxide

Nitrogen oxide may refer to a binary compound of oxygen and nitrogen, or a mixture of such compounds.

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Nonprofit organization

A non-profit organization (NPO), also known as a non-business entity or non-profit institution, is dedicated to furthering a particular social cause or advocating for a shared point of view.

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Oak

An oak is a tree or shrub in the genus Quercus (Latin "oak tree") of the beech family, Fagaceae.

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Oregano

Oregano (Origanum vulgare) is a flowering plant in the mint family (Lamiaceae).

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Ozone

Ozone, or trioxygen, is an inorganic molecule with the chemical formula.

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Parkinson's disease

Parkinson's disease (PD) is a long-term degenerative disorder of the central nervous system that mainly affects the motor system.

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Particulates

Atmospheric aerosol particles, also known as atmospheric particulate matter, particulate matter (PM), particulates, or suspended particulate matter (SPM) are microscopic solid or liquid matter suspended in Earth's atmosphere.

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Patrick Michaels

Patrick J. ("Pat") Michaels (born February 15, 1950) is an American climatologist.

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Permeable paving

Permeable paving is a method of paving vehicle and pedestrian pathways that allows for infiltration of fluids.

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Phoenix, Arizona

Phoenix is the capital and most populous city of the U.S. state of Arizona.

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Platanus racemosa

Platanus racemosa is a species of plane tree known by several common names, including California sycamore, western sycamore, California plane tree, and in North American Spanish aliso.

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Pollution

Pollution is the introduction of contaminants into the natural environment that cause adverse change.

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Population density

Population density (in agriculture: standing stock and standing crop) is a measurement of population per unit area or unit volume; it is a quantity of type number density.

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Precipitation

In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls under gravity.

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Proceedings of the National Academy of Sciences of the United States of America

Proceedings of the National Academy of Sciences of the United States of America (PNAS) is the official scientific journal of the National Academy of Sciences, published since 1915.

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Procurement

Procurement is the process of finding, agreeing terms and acquiring goods, services or works from an external source, often via a tendering or competitive bidding process.

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Profit (economics)

In economics, profit in the accounting sense of the excess of revenue over cost is the sum of two components: normal profit and economic profit.

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Proportionality (law)

Proportionality is a general principle in law which covers several special (although related) concepts.

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Prune

A prune is a dried plum of any cultivar, mostly Prunus domestica or European Plum.

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Pruning

Pruning is a horticultural and silvicultural practice involving the selective removal of certain parts of a plant, such as branches, buds, or roots.

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Pusan National University

Pusan National University (PNU, also called Busan National University) is one of ten national Universities in South Korea.

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Quercus agrifolia

Quercus agrifolia, the California live oak or coast live oak, is a highly variable, often shrubby evergreen oak tree, a type of live oak, native to the California Floristic Province.

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Quercus lobata

Quercus lobata, commonly called the valley oak or roble, grows into the largest of North American oaks.

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Raleigh, North Carolina

Raleigh is the capital of the state of North Carolina and the seat of Wake County in the United States.

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Reflective surfaces (climate engineering)

Reflective surfaces are surfaces that can deliver high solar reflectance (the ability to reflect the visible, infrared and ultraviolet wavelengths of the sun, reducing heat transfer to the surface) and high thermal emittance (the ability to radiate absorbed, or non-reflected solar energy).

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Refrigeration

Refrigeration is a process of removing heat from a low-temperature reservoir and transferring it to a high-temperature reservoir.

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Regression analysis

In statistical modeling, regression analysis is a set of statistical processes for estimating the relationships among variables.

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Renewable energy

Renewable energy is energy that is collected from renewable resources, which are naturally replenished on a human timescale, such as sunlight, wind, rain, tides, waves, and geothermal heat.

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Ross McKitrick

Ross McKitrick (born 1965) is a Canadian economist specializing in environmental economics and policy analysis.

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Rural area

In general, a rural area or countryside is a geographic area that is located outside towns and cities.

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Sacramento Municipal Utility District

The Sacramento Municipal Utility District (SMUD) provides electricity to Sacramento County, California, and a small portion of adjacent Placer County.

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Satellite imagery

Satellite imagery (or spaceborne photography) are images of Earth or other planets collected by imaging satellites operated by governments and businesses around the world.

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Science Daily

Science Daily is an American website that aggregates press releases and publishes lightly edited press releases (a practice called churnalism) about science, similar to Phys.org and EurekAlert!.

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Scrub oak

Scrub oak is a common name for six species of small, shrubby oaks.

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Social network

A social network is a social structure made up of a set of social actors (such as individuals or organizations), sets of dyadic ties, and other social interactions between actors.

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Solar irradiance

Solar irradiance is the power per unit area received from the Sun in the form of electromagnetic radiation in the wavelength range of the measuring instrument.

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Solar power

Solar power is the conversion of energy from sunlight into electricity, either directly using photovoltaics (PV), indirectly using concentrated solar power, or a combination.

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Sowing

Sowing is the process of planting.

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Spain

Spain (España), officially the Kingdom of Spain (Reino de España), is a sovereign state mostly located on the Iberian Peninsula in Europe.

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State Implementation Plan

A State Implementation Plan (SIP) is a United States state plan for complying with the federal Clean Air Act, administered by the Environmental Protection Agency (EPA).

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Stormwater

Stormwater, also spelled storm water, is water that originates during precipitation events and snow/ice melt.

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Street canyon

A street canyon (also known as an urban canyon) is a place where the street is flanked by buildings on both sides creating a canyon-like environment.

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Summer

Summer is the hottest of the four temperate seasons, falling after spring and before autumn.

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Surface weather observation

Surface weather observations are the fundamental data used for safety as well as climatological reasons to forecast weather and issue warnings worldwide.

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Tampa, Florida

Tampa is a major city in, and the county seat of, Hillsborough County, Florida, United States.

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Temperature

Temperature is a physical quantity expressing hot and cold.

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The Economist

The Economist is an English-language weekly magazine-format newspaper owned by the Economist Group and edited at offices in London.

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The Guardian

The Guardian is a British daily newspaper.

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Thermal conductivity

Thermal conductivity (often denoted k, λ, or κ) is the property of a material to conduct heat.

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Thermoregulation

Thermoregulation is the ability of an organism to keep its body temperature within certain boundaries, even when the surrounding temperature is very different.

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Time constant

In physics and engineering, the time constant, usually denoted by the Greek letter τ (tau), is the parameter characterizing the response to a step input of a first-order, linear time-invariant (LTI) system.

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Tornado

A tornado is a rapidly rotating column of air that is in contact with both the surface of the Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud.

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Tree planting

Tree-planting is the process of transplanting tree seedlings, generally for forestry, land reclamation, or landscaping purpose.

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TreePeople

TreePeople is a California based nonprofit environmental advocacy group located in Los Angeles.

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Troposphere

The troposphere is the lowest layer of Earth's atmosphere, and is also where nearly all weather conditions take place.

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Tropospheric ozone

Ozone (O3) is a constituent of the troposphere (it is also an important constituent of some regions of the stratosphere commonly known as the ozone layer).

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Umbellularia

Umbellularia californica is a large hardwood tree native to coastal forests of California, as well as to coastal forests extending into Oregon.

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United States Department of Energy

The United States Department of Energy (DOE) is a cabinet-level department of the United States Government concerned with the United States' policies regarding energy and safety in handling nuclear material.

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United States dollar

The United States dollar (sign: $; code: USD; also abbreviated US$ and referred to as the dollar, U.S. dollar, or American dollar) is the official currency of the United States and its insular territories per the United States Constitution since 1792.

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United States Environmental Protection Agency

The Environmental Protection Agency is an independent agency of the United States federal government for environmental protection.

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University of California, Berkeley

The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California) is a public research university in Berkeley, California.

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University of Cincinnati

The University of Cincinnati (commonly referred to as UC or Cincinnati) is a comprehensive public research university in Cincinnati, in the U.S. state of Ohio, and a part of the University System of Ohio.

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University of Melbourne

The University of Melbourne is a public research university located in Melbourne, Australia.

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Urban area

An urban area is a human settlement with high population density and infrastructure of built environment.

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Urban climatology

Urban climatology refers to a specific branch of climatology that is concerned with interactions between urban areas and the atmosphere, the effects they have on one another, and the varying spatial and temporal scales at which these processes (and responses) occur.

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Urban dust dome

Urban dust domes are a meteorological phenomenon in which soot, dust, and chemical emissions become trapped in the air above urban spaces.

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Urban heat island

An urban heat island (UHI) is an urban area or metropolitan area that is significantly warmer than its surrounding rural areas due to human activities.

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Urban reforestation

Urban reforestation is the practice of planting trees, typically on a large scale, in urban environments.

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Urban sprawl

Urban sprawl or suburban sprawl describes the expansion of human populations away from central urban areas into low-density, monofunctional and usually car-dependent communities, in a process called suburbanization.

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Urban thermal plume

An urban thermal plume describes rising air in the lower altitudes of the Earth's atmosphere caused by urban areas being warmer than surrounding areas.

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Urbanization

Urbanization refers to the population shift from rural to urban residency, the gradual increase in the proportion of people living in urban areas, and the ways in which each society adapts to this change.

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Vegetation

Vegetation is an assemblage of plant species and the ground cover they provide.

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Victoria (Australia)

Victoria (abbreviated as Vic) is a state in south-eastern Australia.

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Visalia, California

Visalia is a city situated in the agricultural San Joaquin Valley of California, approximately southeast of San Francisco, north of Los Angeles, west of Sequoia National Park and south of Fresno.

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Volatile organic compound

Volatile organic compounds (VOCs) are organic chemicals that have a high vapor pressure at ordinary room temperature.

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Waste heat

Waste heat is heat that is produced by a machine, or other process that uses energy, as a byproduct of doing work.

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Wealth

Wealth is the abundance of valuable resources or valuable material possessions.

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Weather station

A weather station is a facility, either on land or sea, with instruments and equipment for measuring atmospheric conditions to provide information for weather forecasts and to study the weather and climate.

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Wildlife

Wildlife traditionally refers to undomesticated animal species, but has come to include all plants, fungi, and other organisms that grow or live wild in an area without being introduced by humans.

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Wind

Wind is the flow of gases on a large scale.

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Wind speed

Wind speed, or wind flow velocity, is a fundamental atmospheric quantity.

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Winter

Winter is the coldest season of the year in polar and temperate zones (winter does not occur in the tropical zone).

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Redirects here:

Heat Island, Heat island, Heat island effect, Heat islands, Heat-island effect, Heat-island phenomenon, UH Islands, Urban Heat Island, Urban Heat Island Affect, Urban Heat Island Effect, Urban heat, Urban heat dome, Urban heat effect, Urban heat island affect, Urban heat island effect, Urban heat islands, Urban heat zone.

References

[1] https://en.wikipedia.org/wiki/Urban_heat_island

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