Greenhouse gases are gases that can trap heat They get their name from greenhouses A greenhouse is full of windows that let in sunlight That sunlight creates warmth The big trick of a greenhouse is that it doesn't let that warmth escape That's exactly how greenhouse gases act They letThis is a list of countries by total greenhouse gas (GHG) annual emissions in 16 It is based on data for carbon dioxide, methane (CH 4), nitrous oxide (N 2 O), perfluorocarbons (PFCs), sulfur hexafluoride (SF6) and hydrofluorocarbons (HFCs) emissions compiled by the World Resources Institute (WRI) The table below separately provides emissions data calculated on the basis ofImprovements in energy efficiency;

How Do Greenhouse Gases Contribute To Global Warming