climate change

Unconfirmed Tornado Reported in Chico, Calif

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Jillian Macmath, AccuWeather.com Staff Writer February 19, 2013; 6:22 PM

 

 

The National Weather Service has not yet confirmed reports of a tornado touching down in Chico, Calif. around 2 p.m. PT Tuesday.

"The set-up for thunderstorms and tornadoes is ideal across California tonight. The storm coming across California is the coldest of the season and contains plenty of cold air aloft which will support the formation of thunderstorms," AccuWeather.com Expert Meteorologist Bernie Rayno said.

 

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Northern Hemispheric Snow Cover Trends

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February 19, 2013; 4:08 PM-Accuweather

Image courtesy of the Rutgers University Global Snow Lab

Has there been a noticeable decrease in snow cover across the northern Hemisphere since the mid 1960's?

Well, it depends on the time of the year.

My friends from the Rutgers University Global Snow Lab (my alma mata 89') keep a close track of global snow cover and have data that go back to the 1960's.

 

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Hummingbirds Migrating Earlier in Spring

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By: Bruce Smith | Associated Press Published: February 18, 2013
 

 

CHARLESTON, S.C.  — Ruby-throated hummingbirds are migrating to North America weeks earlier than in decades past, and research indicates that higher temperatures in their winter habitat may be the reason.

Researchers say the early arrival could mean less food at nesting time for the tiny birds that feed on insect pests, help pollinate flowers and are popular with birdwatchers.

 

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Arctic sea ice volume now one-fifth its 1979 level

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Dr. Jeff Masters, 2:52 AM GMT on February 19, 2013

 

Figure 1. Arctic sea ice volume in thousands of cubic kilometers during the September minimum in 1979 compared to 2012, as estimated by the University of Washington PIOMAS model. Arctic seas ice volume has declined by more than a factor of five. Image credit; Andy Lee Robinson.

 

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