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This September, ask a climate scientist
04 September 2013
The topic of climate change inspires a lot of debate. At NASA, it has also inspired a lot of science.
NASA scientists examine the Earth's climate and how it is changing - gaining knowledge through decades of satellite observations, powerful computer models and expert scientific analysis.
Over the course of this month, these NASA climate experts will answer selected questions through the agency's social media channels - primarily on YouTube, Twitter and Google+.
But first - they need your questions. Have a question that's always confounded you about Earth's climate? Wonder why it matters that the climate is changing now if it has changed before? Or how scientists know changes seen in recent decades are the result of human activities, not natural causes?
Go ahead. Ask a climate scientist.