Atmosphere - The layers of gases that surround the Earth. Nitrogen, oxygen and carbon dioxide are the important ones., Carbon footprint - The total amount of greenhouses gases that are caused by a person, product or organisation. It is also the measure of carbon dioxide and methane within a population., Climatologist - An expert who studies the climate., Fossil fuels - Natural, finite fuel. Eg oil, coal and natural gas., Global warming - the unusually rapid increase in Earths average surface temperature over the past century, Greenhouse gas - The gases responsible for global warming - carbon dioxide, methane, nitrous oxide and CFCs (chlorofluorocarbons).,

Climate Change Tutorial

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