Gallery Section
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More CO2 = More Pollen

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More CO2 = More Pollen

Climate change has increased pollen counts and the length of the pollen season, trends that are expected to continue through mid-century.

Spring is Arriving Earlier in the U.S.

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Spring is Arriving Earlier in the U.S.

Spring is arriving earlier across the U.S. by an average of three days.

Spring Temperature Trends

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Spring Temperature Trends

Nationwide, spring has been getting warmer at a rate of 0.45°F per decade since 1970.

How Much Precipitation is Needed to End the Drought?

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How Much Precipitation is Needed to End the Drought?

A striking look at how much precipitation the Southwest would need over the next month to end the drought.

Valentine’s Day Snow Cover

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Valentine’s Day Snow Cover

Snow cover for the continental U.S. on Valentine’s Day, 2014 was light-years beyond what we saw a year ago.

January Record Extremes

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January Record Extremes

The first month of 2014 has left us a nation divided by hot vs. cold weather.

Winter Precipitation Trends

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Winter Precipitation Trends

While every region of the country has seen a rise in winter temperatures since 1970, precipitation trends paint a more varied picture.

Winter Temperature Trends

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Winter Temperature Trends

Since 1970, winters in the continental U.S. have warmed by 0.61°F per decade on average.