Boston: July Days Over 90 Degrees

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Boston: July Days Over 90 Degrees

  • Published: Aug 3rd, 2010

By mid-century in Boston, the sweltering heat of July 2010 may be thought of as cooler-than-average conditions, as more days above 90°F routinely occur.

Washington, DC: July Days Over 90 Degrees

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Washington, DC: July Days Over 90 Degrees

  • Published: Aug 3rd, 2010

By mid-century in Washington, DC, the sweltering heat of July 2010 may be thought of as cooler-than-average conditions, as more days above 90°F routinely occur.

Cape Verde Hurricanes

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Cape Verde Hurricanes

  • Published: Jul 22nd, 2010

Hurricanes that form in the Cape Verde region have a long trajectory over warm oceans — which are ideal conditions for hurricane intensification.

Low-Carbon Power

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Low-Carbon Power

  • Published: May 14th, 2010

Half of our electricity today comes from carbon-intensive coal. How might an 80 percent reduction in greenhouse gas emissions be achieved by 2050, when electricity needs might be 50 percent higher than today?

Fuel Used to Make Electricity in US: 2008

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Fuel Used to Make Electricity in US: 2008

  • Published: May 14th, 2010

Coal was the dominant fuel used to to generate electricity in the US in 2008.

Scenario: Possible Electric Energy Sources in 2050

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Scenario: Possible Electric Energy Sources in 2050

  • Published: May 14th, 2010

A mix of new electricity sources by 2050 could reduce CO2 emissions by 83 percent.

Like Ice Melting in a Glass

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Like Ice Melting in a Glass

  • Published: Mar 31st, 2010

An interactive analogy showing just how fast Arctic sea ice has been thinning.

Accelerated Ice Loss from Greenland

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Accelerated Ice Loss from Greenland

  • Published: Mar 30th, 2010

Greenland lost much more ice in the 2000's than the decade before.