In this class we began our examination of global warming. It was emphasized that global warming is only a theory. However, many accept its validity and call for a plan, global in implementation, to reverse the global warming trend.
Greenhouse gasses exist naturally in the atmosphere.
The presence of these gasses causes the retention of heat. This is known as the greenhouse effect. Increased percentages of these gasses in the atmosphere strengthens the greenhouse effect. By changing the atmospheric chemistry, they induce climate changes, which in turn disrupt natural ecosystems, alter weather patterns, destroy environmental support structures for biodiversity, and cause a rise in sea level. The increased levels of these gases are generally associated with energy production, industrial activity, and technology development.