Even though it's still cold outside, the Earth's temperature is rising due to global warming.

It's well accepted by scientists that greenhouse gases, like carbon dioxide (CO 2), trap heat in the Earth's atmosphere.

By increasing the levels of greenhouse gases, human activities are heating up the Earth.

What affects does global warming cause to Pennsylvania's environment? (Check all that apply)
emerging killer diseases like West Nile virus	disappearance of some songbirds
more severe heat waves	a decline in forested areas
an increase in crop production	increase in cold water
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Some Helpful Links: How Can Global Warming Impact Pennsylvania ? Global Warming and PA Songbirds Global Warming

Pennsylvania Environment and Ecology Standard

Environmental Health: Human Actions (4.3)

 

Activities: EPA Global Warming Kids Site Global Warming Unit Eco-Quizzes: Climate Changes

 

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