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Unit 1: A Clear and Present Danger
Terms from Chapters 16 and 7
Terms in this set (49)
a natural process in which certain gases in the atmosphere trap heat near Earth, preventing the heat from radiating back into space
Gases such as carbon dioxide, methane, nitrous oxide, water vapor, and ozone in the atmosphere which are involved in the greenhouse effect.
Distance north or south of the equator
Movement of ocean water caused by density difference brought about by variations in temperature and salinity. As ocean water freezes at the poles it concentrates salt, and the colder, denser water sinks.
A description of surface features of land.
Height above sea level. Can impact climate.
Volcanoes impact on climate
When a volcano erupts it changes the chemical composition of the atmosphere, and it may cool the climate by blocking of sun, or add to the greenhouse effect.
Can impact climate by changing concentrations of gas (including CO2, water vapor, and oxygen)
Changes in Earth's Orbit
Earth can wobble on its axis over long spans of time, and can impact the climate.
Global climate change
A broad term that refers to changes in the earth's climate mostly as a result of changes in temperature and precipitation.
An increase in the average temperature of the earth's atmosphere (especially a sustained increase that causes climatic changes)
indirect evidence that serve as substitutes for direct measurements
programs that combine what is known about atmospheric circulation, ocean circulation, atmosphere-ocean interactions, and feedback cycles to simulate climate processes
Coal, oil, natural gas, and other fuels that are ancient remains of plants and animals.
The removal of trees faster than forests can replace themselves.
Effect of climate change - habitats of some plants and animals shift to where the climate is cooler- toward the north or south poles - or further up a mountain
Occurs when a coral becomes stressed and expels most of its colorful algae, leaving an underlying ghostly white skeleton of calcium carbonate
is the ongoing decrease in the pH of the Earth's oceans, caused by the uptake of carbon dioxide (CO2) from the atmosphere.
the total carbon dioxide emissions produced by an individual, group, or location
A tax per unit of carbon emissions of fossil fuels.
a method for managing pollution in which a limit is placed on emissions and businesses or countries can buy and sell emissions allowances
A voluntary payment to another intended to reduce the greenhouse emissions that one is unable or unwilling to reduce oneself.
A method of storing carbon emissions to prevent their release into the atmosphere
(2005) controlling global warming by setting greenhouse gas emissions targets for developed countries (which the US did not sign)
the variety of life in the world or in a particular habitat or ecosystem.
the number or variety of species in a particular region
scientists who classify species
differences in DNA among individuals within a species or population
the number and variety of ecosystems within a particular area
The increase in species richness or biodiversity that occurs from the poles to the tropics
can resist environmental change without losing function
Are affected by change but can bounce back and regain function.
The process by which natural environments provide life-supporting resources
The disappearance of a particular population from a given area, but not the entire species globally
Background rate of extinction
the pace of independent, one-by-one, "normal" species loss
A species in danger of becoming extinct in the near future
Species that is likely to become endangered.
Breakup of a habitat into smaller pieces, usually as a result of human activities.
species that enter new ecosystems and multiply, harming native species and their habitats
catching or removing from a population more organisms than the population can replace
Endangered Species Act (ESA)
Protects species that are considered to be threatened or endangered. Includes migratory birds and their habitats.
CITES (Convention on International Trade in Endangered Species)
An international agreement that bans the trade of body parts of endangered species.
the mating of animals in zoos or wildlife preserves
Species Survival Plan (SSP)
a plan carried out by zoos and aquariums to protect a species
Biodiversity hot spot
A relatively small area with numerous endemic species and a large number of endangered and threatened species.
Species that is found in only one area. Such species are especially vulnerable to extinction.
When agencies such as the World Bank make a deal with third world countries that they will cancel their debt if the country will set aside a certain amount of their natural resources.
strips of protected land linking larger areas. They allow animals to move freely and safely between habitats that would otherwise be isolated by human activities.
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