asked in Science+Technology by (197 points) 2 4

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answered by (671 points) 1 3 16
First you need to establish that there actually is some such thing as "global warming". The globe has always been warming and cooling, and really nobody has any idea what causes it. For instance during the American revolution the Potomac River froze so solidly that soldiers could ROLL cannons across it. Since 1940 weather scientists have acknowledged that the nation had bumper crops every year because of warm weather, not because of improved farm machinery or fertililzers. So the casual assumption that "global warming", whatever you mean by that, is caused by anything humans are doing is NOT supported by observations.
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answered by Patron (1,545 points) 2 6 13
Global warming is one of the most serious issues facing the human race and the honest truth is that humans have a negative impact on the environment. Some of the ways we kill the environment include:

Clearing and burning of forestland.Burning of forests is harmful to the environment.When vegetation is cleared or removed,carbon is released back into the atmosphere as CO2 and this contributes to global warming
Ranching is also a culprit.Ranching produces a huge amount of animal waste which produces lots of methane...a harmful greenhouse gas

Fertilizers and pesticides also pollute waterways and air.They are manufactured at huge plants which dumps harmful chemicals into the environment including CO2 and methane.

Aerosols are also terrible for the environment.They are loaded with chlorofluorocarbons which heat the ozone layer and allows harmful UV rays through
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answered by (137 points) 1 4
Any activities that are responsible to generate green house gases including carbon disk oxide, methane, etc may cause global warming. The activities may be natural or anthropogenic. Other than fossil fuels, the activities may be automobile exhaust, volcanic eruption, deforestation etc. Through automobiles exhaust direct CO2 is not generated but CO is generated. With the reaction with atmospheric oxygen, the carbon di oxide is formed

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