dicuss green house gases
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Greenhouse gases trap heat in the atmosphere, which makes the Earth warmer. Carbon dioxide is the most important greenhouse gas emitted by humans, but several other gases contribute to climate change, too.
These greenhouse gases don't just stay in one place after they're added to the atmosphere. As air moves around the world, greenhouse gases become globally mixed, which means the concentration of a greenhouse gas like carbon dioxide is roughly the same no matter where you measure it. Even though some countries produce more greenhouse gases than others, emissions from every country contribute to the problem. That's one reason why climate change requires global action. The graph below shows how the world's total greenhouse gas emissions are continuing to increase every year.
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• A greenhouse gas is a gas that absorbs and emits radiant energy within the thermal infrared range....
• Greenhouse gases cause thegreenhouse effect on us....
• The primarygreenhouse gases in Earth's atmosphere are water vapor, carbon dioxide, methane, nitrous oxide and ozone....
•gas emissions continue at their rate in Earth's surface temperature could exceed will harm us with potentially harmful hazarads on the eco system....