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Learn more about Global Warming!
Find out more about climate crisis at the following sites:
Green Coast Foundation - learn the latest about renewable energy resources in California
GlobalWarming.org - here news of political campaigns around people like Al Gore and the CEI
We Can Solve the Climate Crisis - join this nonprofit organization and become one of the many who are determined to stop global warming
- What is Global Warming?
Global Warming is the increase in the world's temperatures. Scientific evidence shows that the earth is getting warmer. Since 1900, the average global temperature has increased by about one degree Fahrenheit. Maybe one degree doesn't seem like much, but the rate of global warming will not stay at this steady pace if we continue to live the way we do.
- How is Global Warming caused?
Global Warming is believed to be caused in part by the Greenhouse Gas effect and depletion of the ozone layer.
- What is a Greenhouse Gas?
A Greenhouse Gas is a gas that absorbs radiation. Carbon dioxide, methane, water vapor, and ozone are important examples of greenhouse gases involved in Global Warming. They contribute to the warming of the Earth's atmosphere by reflecting radiation from the Earth's surface.
- What is the Greenhouse effect?
Solar radiation travels toward earth and passes through the atmosphere. Some solar radiation warms the earth's surface. Some of it is reflected by the atmosphere, clouds, and the earth's surface, and heads back toward space. Greenhouse gases (such as carbon dioxide) in the atmosphere do not allow some of the reflected radiation to escape. This trapped radiation builds inside the atmosphere, and the earth's surface becomes warmer.
- How are Greenhouse Gases involved in Global Warming?
These days, literally tons of greenhouse gas pollution is emitted into the earth's atmosphere, causing it to expand and be thicker. This makes it more difficult for some of the radiation that is supposed to escape in the Greenhouse effect to be reflected back toward space. As a result of this, more and more heat radiation is kept within the earth's surface and the atmosphere, warming the entire globe. Since the average temperature of the earth warms, this causes ice to melt from the polar ice caps. Usually, some of that reflected heat is actually reflected off of the polar ice caps and bounced back into space, but now that there is so much less ice to be reflected off of, it is absorbed into the melted ice, now water. So many effects of global warming create of chain of more and more heat to continue the future crisis.
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