Anthropogenic Global Warming: Is there a consensus?

The mainstream media has pushed a certain agenda about global warming.  The reasons they have done this are worth discussing, but here I wish only to say that they have been dishonest with us.  Let me explain first what is meant by anthropogenic global warming, and then I will show explain why there is no consensus.

First, anthropogenic global warming is the theory that humankind, through the emissions of greenhouse gases, such as carbon dioxide, has contributed to the warming of the planet.  It is believed that these gases trap heat from the sun on the planet, much as a greenhouse traps heat from the sun.  Humans have indeed increased their emissions into the atmosphere of these greenhouse gases through the use of power plants, cars, factories and so forth, anything that uses carbon fuels such as petroleum, coal and natural gas.  They believe further that the eating of meat contributes to the problem, because cattle increases the amount of gases like methane and carbon dioxide too.  To people living in cities where fumes from cars and factories choke out their opportunity to breath fresh air, these conclusions may seem evident enough.
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