Tagged: arctic

Arctic records tumble as ice melts: 2012 Arctic report card released at AGU - Hot Topic

Gareth Renowden Dec 06, 2012

The latest Arctic Report Card was published yesterday at the American Geophysical Union’s Fall Meeting in San Francisco, and it makes grim reading. Apart from last summer’s new record low sea ice minimum, all the indicators of warming are pointing in the wrong direction. The Arctic is making a rapid transition to a new climate [...] … Read More

Agreement polar ice sheets are melting - Open Parachute

Ken Perrott Dec 02, 2012

Many climate scientists felt the conclusions on effects of global warming in the 2007 IPCC review were too conservative. One reason was the estimation of likely melting of ice sheets and its effects. Problem was that there was insufficient knowledge … Continue reading → … Read More

A concise summary of climate change – science and politics - Open Parachute

Ken Perrott Oct 16, 2012

Here’s a relatively short (26 min) video of a lecture by Michael Mann. I think it gives a very concise and accurate picture of the current science of climate change and the political attacks on climate scientists (Mann calls this … Continue reading → … Read More

Why Arctic sea ice shouldn’t leave anyone cold - Hot Topic

Gareth Renowden Aug 26, 2012

In this guest post Neven Acropolis, the man behind the excellent Arctic Sea Ice blog, looks at the reasons why we need to pay attention to the rapid loss of sea ice in the Arctic Ocean. Arctic sea ice became a recurrent feature on planet Earth around 47 million years ago. Since the start of [...] … Read More

Pump up the volume (before the ice is gone) - Hot Topic

Gareth Renowden Aug 12, 2012

Early results from the European Space Agency’s Cryosat-2 satellite, launched in 2010, suggest that the Arctic sea ice volume in summer is currently being lost at the rate of 900 cubic kilometres per year, Robin McKie reports in The Guardian. By combining Cryosat data with other sources they have concluded that there has been a [...] … Read More

Arctic sea ice forecast: it’s going to be tough to stay cool - Hot Topic

Gareth Renowden Aug 12, 2012

Bad news from the Arctic is piling up as we head into the last few weeks of the melting season. The various measures of sea ice area, volume and extent are plummeting towards a new record minimum. I have therefore reviewed the history of Arctic sea ice melting seasons since 2007, and compiled my own [...] … Read More

Greenland melt record likely - Hot Topic

Gareth Renowden Jun 27, 2012

Jason Box reports that the Greenland ice sheet darkening recorded in satellite albedo1 measurements is setting new records this summer, especially at high altitudes. Box recently blogged that ice sheet reflectivity this summer “has been the lowest since accurate records began in March, 2000″. Here’s the latest “noodle plot”2 (regularly updated here) for the ice [...] … Read More