1/26/10: In preparation for President Obama's first State of the Union address, NASA climatologist James Hansen discusses United States energy usage and answers CitizenTube users' questions cap and trade.
Questions from users:
"Is a third party needed to make real environmental change?"
-Archie, Wyoming
"How is taxing CO2 emissions going to help the environment?
-Angry Patriot, Minnesota
"How can we promote safe nuclear energy?"
-Mattahwak, Western Pennsylvania
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