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Obama Reveals Bold New Climate Change Plan
The president outlined his policy objectives at Georgetown University in Washington, D.C.
President Obama to Announce Climate Change Plan Today
The president will discuss climate change in an address at Georgetown University today.
NASA Checks Tundra for Greenhouse Gases
NASA mission skims the tundra, sniffing out methane and carbon dioxide.
High US Methane Levels Found in Cross-Country Drive
Gas levels were higher than previously thought.
Ice-Free Arctic May Be Near, Study Suggests
Researchers analyzed a sediment core from the oldest deep lake in the northeast Russian Arctic.
Historical Climate Study Reveals Humans' Role in Current Warming
The study found that warming temperatures in the 20th century reversed a long-term cooling trend.
Past Antarctic Warming Linked to Greenhouse Gas
Past increases in carbon dioxide levels in Antarctica were tied to warming temperatures, suggesting modern greenhouse gas emissions may cause similar warming
Tiny Solar Activity Changes Affect Earth's Climate
Even small tweaks to the sun's weather cycle can have a ripple effect on Earth's climate.
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