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While the Earth's atmospheric greenhouse gases are critical for maintaining the moderate climate that sustains life on this planet, human activities have increasingly affected the quantity of greenhouse gases in the atmosphere. In this What's Up in the Environment? video segment, research scientists at Biosphere 2 in Arizona are able to study the effects of global climate change on organisms in a controlled facility. The current research focuses on the response to increased quantities of CO2 in a number of different model ecosystems.
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