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Climate Change

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by

Jordan Tice

on 30 April 2010

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Transcript of Climate Change

Climate Change Greenhouse Effect The greenhouse effect is when the sun's energy reaches the earth and some of it is reflected back to space while the rest is absorbed. The absorbed energy warms the earth's surface, which then emits heat energy back to space as long- wave radiation. This radiation gets trapped by greenhouse gases warming the earth's surface and atmosphere. Climate Change Climate change refers to seasonal changes over a long period of time. These climate patterns play a fundamental role in shaping natural ecosystems, and the human economies and cultures that depend on them. Impact Climate Change May Have on Earth Rise in global sea level
Change in vegetation zones
An increase in disease levels
Change in ecosystems
Growing Deserts Causes of Climate Change Natural Causes- Continental Drift
Volcanoes
Ocean Currents
Earth's Tilt
Comets and Meteorites Human Causes- Use of fossil fuels
Pollution
Generating large quantities of waste (trash) Evidence of Warming The world's average surface temperature has increased by about 0.74 degrees Celsius over 100 years. Snow cover has decreased in most regions, especially in spring. The average dates for rivers and lakes has arrived later by 5.8 days per century. Evidence of humans impacting climate change. Our growing population has led to an increase in activities such as burning fossil fuels and expanding agriculture and deforestation. How Can We Reduce Climate Change? Reducing, reusing and recycling solid waste can decrease the amount of heat- trapping greenhouse gases you release. Different management practices for agricultural land areas and forest lands can affect greenhouse gas emissions. By Jordan Tice and Josiah Looka
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