Graphic
Countries That Set New Record Highs in 2010
More countries have set new record high temperatures in 2010 than during any other year since instrumental records began.
Graphic
Philadelphia: July Days Over 90 Degrees
By mid-century in Philadelphia, the sweltering heat of July 2010 may be thought of as cooler-than-average conditions, as more days above 90°F routinely occur.
Graphic
New York: July Days Over 90 Degrees
By mid-century in New York, the sweltering heat of July 2010 may be thought of as cooler-than-average conditions, as more days above 90°F routinely occur.
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Boston: July Days Over 90 Degrees
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.
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Washington, DC: July Days Over 90 Degrees
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.
Microanimation
Arctic Sea Ice by the Decade
NASA satellites have watched Arctic sea ice for three decades now, and the record shows more and more melting over time.
Map
Mountain Snowmelt and Fire
In recent decades in the American West, wildfires have burned about 17 times more land in years with early snowmelt than with late.
