An Inconvenient Truth: A Global Warming- What type of radiation is given off by the Earth?

Why is it important that Earth trap some of this radiation?

6What do greenhouse gases (CO2) do to the atmosphere?

Who was one of the first scientists to realize the effects of CO2 in the atmosphere?

When did he do this?

How was it measured?

Where?

Why does a graph of CO2 emissions through time have annual fluctuations that correspond with the seasons?

Why are glaciers in the Himalayas so important?

How can scientists tell what CO2 levels were like in the past?

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