Poles

Unprecedented ice melt in Greenland

This is bad news.  As NASA states : ” For several days this month, Greenland’s surface ice cover melted over a larger area than at any time in more than 30 years of satellite observations.“ “Nearly the entire ice cover of Greenland, from its coastal edges to its two-mile-thick center, experienced some melting at its […]

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CO2 concentration reaches 400 ppm

This is historical : carbon dioxide concentration has reached in several places over the arctic a concentration of 400 parts per million. This doesn’t seem to be much, but pre-industrial levels were of 280 ppm. As you might remember, the safe level is considered by the scientific community to be at 350 ppm. CO2 concentration

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Bad climate news from the Amazon and the Arctic

I recently wrote about positive feedback mechanisms that would increase climate change as temperatures increase. It seems we are already seeing the very first tragic examples. The first one comes from Peru, where climate change led to a warming Atlantic Ocean, which itself led to a drying Amazon rainforest, which in their turn led to

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IPCC underplayed the impacts of climate change

This is what arises as the Arctic is melting much faster than the IPCC predicted in its report in 2007. ( I had blogged much about their findings during my first year of blogging here) As Climate Progress notes : ” Far from being “alarmist,” predictions from climate scientists in many cases are proving to

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Arctic sea ice sets new record low in 2011

This is not surprising as I was blogging about it two months ago. To TreeHugger : ” After several months of reporting near-record or record monthly levels of Arctic sea ice melting, German researchers now report that a new yearly record low has been set.” ” The area covered by Arctic sea ice has declined

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At long last a normal winter in the Arctic

To the Daily Green ” there’s more ice in the Arctic than at any time in recent years.” To the US National Snow and Ice Data Center (NSIDC) specialists March was particularly cold in the Arctic. As they note on their website : ” Ice extent was above normal in the Bering Sea and Baltic Sea, but

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Glaciers are melting faster and faster

The UNEP and the World Glacier Monitoring Service published a report showing how glaciers all around the world are melting faster and faster, thus threatening the water supplies of hundred of millions of people. The report then noted that “the average annual melting rate of glaciers doubled after the turn of the millennium.” This scary

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Great astrophotographies – December 2009

This is time for me to present my selection of the best pictures of the NASA’s Astronomy Picture of the Day (APOD). As always, this month was packed with beautiful images. It was as always difficult to select just ten. For the last post of the year (and of the decade) let’s have a look at

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