greenhouse effect
121Anoxic event — As early as 1911, major oceanic currents were well mapped and understood, albeit without today s understanding of how they affect regional and global climatological conditions …
122Climate change in the United States — There is an international interest in issues surrounding global warming in the United States due to the U.S. position in world affairs and the U.S. s high level of greenhouse gas emissions per capita. Contents 1 Greenhouse gas emissions by the… …
123Methane — Methane …
124List of climate scientists — Climate scientists study the statistics of the Earth s temperature (top) and precipitation (bottom) for a better understanding of the climate system. This list of climate scientists contains famous or otherwise notable persons who have contribute …
125Media coverage of climate change — has significant effects on public opinion on climate change,[1] as it mediates the scientific opinion on climate change that the global instrumental temperature record shows increase in recent decades and that the trend is caused mainly by human… …
126Deforestation — For other uses, see Deforestation (disambiguation). Jungle burned for agriculture in southern Mexico …
127Ozone depletion — Image of the largest Antarctic ozone hole ever recorded (September 2006) Ozone depletion describes two distinct but related phenomena observed since the late 1970s: a steady decline of about 4% per decade in the total volume of ozone in Earth s… …
128United States emission standards — In the United States, emissions standards are managed on a national level by the Environmental Protection Agency (EPA). State and local governments play a subsidiary role. Contents 1 Motor vehicles 1.1 Light duty vehicles 1.1.1 Phase 1 1994 1999 …
