Turn Up The Heat
...billions of tons of artificial greenhouse gases into the atmosphere, and the climate has begun to show many signs of global warming. On the other hand, some people want you to believe that global warming does not exist. There are many people are only out for personal gain and are outright liars. According to a scientist at NASA ¡°Global warming is the single largest threat to our planet¡±(Weier2002). Over the past two hundred years we seen significant changes in the effects on our environment, primarily due to humans and both their lack of awareness, or their total disregard for the effects that their actions have on the environment.
Global warming is one of our toughest environmental challenges. It threatens the health of people, wildlife and economies around the world. The problem is carbon dioxide and other heat-trapping pollution. This pollution mainly comes from cars, power plants and other industrial sources that burn gasoline, coal and other fossil fuels. This matter collects like a blanket in our atmosphere. As a result, the planet gets warmer.
We can say that the amount of radiation from the sun that reaches the earth each year has been fairly consistent from year to year and century to century until recently. Thirty percent of the total solar energy that strikes the earth is reflected back into space by clouds, atmospheric aerosols, reflective ground surfaces, and even ocean surf. Seventy percent of the solar energy is absorbed by the land, air and oceans. ¡°The absorbed light is mostly in the form ultraviolet and near infrared solar radiation¡±(Weier2002). Absorption of this solar energy makes life on this planet possible. The energy does not stay bound up forever. If it did our planet would wind up being hotter than the sun. Instead, when the rocks, air, and sea heat up, they give off thermal radiation, which escapes into space and allows...
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