greenhouse effect, a warming of Earth's surface and troposphere (the lowest layer of the atmosphere) caused by the presence of water vapour, carbon dioxide, methane, and certain other gases in the air. Of those gases, known as greenhouse gases, water vapour has the largest effect.. The origins of the term greenhouse effect are unclear. French mathematician Joseph Fourier is sometimes given Global Green Books saw a significant rise in issues, a lot of unpleasant "surprises" were cropping up; business was down as new resources were hired, also some of the projects were poorly estimated. The local university was unhappy as their eBook products reached campus late for use by professors and student. Greenhouse Gases. Greenhouse gases are gases—like carbon dioxide (CO 2 ), methane, and nitrous oxide—that keep the Earth warmer than it would be without them. The reason they warm the Earth has to do with the way energy enters and leaves our atmosphere. When energy from the sun first reaches us, it does so mainly as light. Global Warming. It is the phenomenon of a gradual increase in the average temperature of the Earth's atmosphere. The main cause for this environmental issue is the increased volumes of greenhouse gases such as carbon dioxide and methane released by the burning of fossil fuels, emissions from the vehicles, industries and other human activities. You can find our main overview article on the breakdown of global greenhouse gas emissions by sector here: Sector by sector: where do global greenhouse gas emissions come from? Globally, we emit around 50 billion tonnes of greenhouse gases each year. The Primary GHGs are: Water Vapour. Carbon dioxide. Methane. Nitrous oxide. Ozone. Other GHGs are carbon monoxide, fluorinated gases, chlorofluorocarbons (CFCs), black carbon (soot), and brown carbon. Among the greenhouse gases, only water vapour can absorb both incoming (UV) and outgoing (infrared) radiation. QOat.

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