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A group scientists led by Dr. Ben Santer find the fingerprint of the human influence on a key climate change indicator.

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Arresting First Responder Images of Colorado Flooding, Rescue

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An Antarctic scientific expedition, five years in the making, reveals that warmer waters are melting the Antarctic Ice Shelf from below.

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NASA releases previous season images from its HS3 (Hurricane and Severe Storms Sentinel) mission, where they fly unmanned Global Hawks into Atlantic tropical systems. This season's program is currently underway and runs through September 23.


From NOAA

Globally, August tied 2005 for the 4th warmest since records began in 1880. This also marks the 342nd consecutive month with a global temperature above average.

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Tweetable Fact

Since 1970, much of the U.S. has seen the frost-free season get longer. Cool map shows just how much: http://bit.ly/1535BLH



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NAVIGATING THE IPCC     


In anticipation of next week's Climate Matters, "Navigating the IPCC", there are a few offerings that need your RSVP ( bplacky@climatecentral.org).

1) Climate Central Webinar

Monday, September 23 at 2:00 PM EST

An interactive webinar that will cover the history, findings, and predictions of the IPCC report, with plenty of time for questions.

Here is the access information: https://meetings.webex.com/collabs/meetings/join?uuid=M6XIB952BB68F2BPAZS9ZA4LVO-7IMF

Audio Connection: +1-415-655-0001 US TOLL
Access code: 199 309 177

2) U.N. Foundation IPCC Briefing

Friday, September 27 9:00-9:30 AM EST

LIVE online briefing featuring IPCC scientists via satellite from Stockholm

3) Satellite Interview Opportunity with lead IPCC Author - Claudia Tebaldi

Friday, September 27

We would like to offer Climate Central's Dr. Tebaldi as someone who can discuss the principle findings of the IPCC report, why it is important, the strength of the global consensus on global warming, and the sensitivity of the climate to greenhouse gas emissions. Let is know if you are interested in booking satellite time for an interview.


Story Highlights

  • Since 1970, much of the U.S. has seen the frost-free season get longer.

  • Since record keeping began in 1895, the national average temperatures has increased by about 1.5 degrees, and more than 80 percent of this increase has occurred since 1980.


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Temperatures across the Southwest are still near triple digits, but ’tis the season for frosty conditions to start showing up across other parts of the country. Northern Wisconsin and western Michigan, for example, have already seen overnight lows drop below freezing.

The actual date of first frost can be a few weeks earlier or a few weeks later than the long-term average for any given location - that’s weather and natural variability. Since 1970, though, much of the U.S. has seen the frost-free season get longer, on the backdrop of rising temperatures across the country. Since record keeping began in 1895, average temperatures have increased by about 1.5 degrees nationally, and more than 80 percent of this increase has occurred since 1980. The graphic (above) shows the frost-free trend in your city, while the graphic (below) shows the trend over the entire country.



Click below for a high-resolution version
WITH a title - WITHOUT a title




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