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Without its atmosphere, Earth would be a chilly place. Sunlight would illuminate the planet each day, and then much of its energy would leak right back to space, leaving the planet with an average surface temperature of around 0 degrees Fahrenheit (-18 degrees Celsius). Fortunately for us, Earth has what’s called a greenhouse atmosphere, with gases like carbon dioxide (CO2), water vapor (H2O),...

Gases that trap heat in the atmosphere are called greenhouse gases. This section provides information on emissions and removals of the main greenhouse gases to and from the atmosphere.  Carbon dioxide (CO2): Carbon dioxide enters the atmosphere through burning fossil fuels (coal, natural gas, and oil), solid waste, trees and other biological materials, and also as a result of certain chemical...

Which countries emit the most greenhouse gases each year? How do they compare per person?This page was first published in June 2020 and last revised in January 2024.In discussions on climate change, we tend to focus on carbon dioxide (CO2) — the most dominant greenhouse gas produced by the burning of fossil fuels, industrial production, and land use change.However, CO2 is not the only greenhouse gas...

The earth's climate is changing. Multiple lines of evidence show changes in our weather, oceans, and ecosystems, such as: These changes are due to a buildup of greenhouse gases in our atmosphere and the warming of the planet due to the greenhouse effect. Atmospheric Data Trapped In Ice Source: Smithsonian National Museum of Natural History, 2018 The Greenhouse Effect The...

<!]>Air pollution is a major environmental threat and one of thernmain cases of death among allrnrisk factors, ranking just belowrnhypertension, tobacco smokingrnand high glucose. WHO estimates that, globally, air pollution is responsible for about 7 millionrnpremature deaths per year fromrnischemic heart disease, stroke,rnchronic obstructive pulmonaryrndisease and lung cancer, but alsornfrom...