How is Antarctica melting? Much faster than we hoped, according to the latest research — neatly explained in the latest Peter Sinclair This Is Not Cool video for Yale Climate Connections (formerly the Yale Forum), cunningly titled Meltwater Pulse 2b. Just how fast the West Antarctic Ice Sheet will melt, and how much East Antarctica will contribute to near term sea level rise is open an open question, but the news is not good, as the latest research on the stability of the Antarctic ice sheet at the end of the last ice age suggests.
Odds are shortening on the imminent arrival of an El Niño, as Peter Sinclair explores in his latest video for the Yale Climate & Media Forum (see also Climate Progress), and we can expect a wild ride. Meanwhile the ice continues to melt and the oceans rise: in Wellington and Christchurch they’re planning for 1 metre by the end of the century. As Jim Salinger noted this week, we need a big picture fix for the problem — adaptation is essential, with mitigation to prevent the worst happening. And while China plans a high speed train network to span Eurasia and North America, oil investors are looking nervously at the $1.1 trillion oil companies are gambling on a high carbon future. Yes folks, it’s time for another open thread, and there is no shortage of hot topics to discuss…
With global atmospheric carbon dioxide bumping along just under 400ppm, and sure to break through to higher levels in the near future, it’s worth taking a long hard look at what the climate system was like the last time CO2 was at these levels — the Pliocene period 3-5 million years ago. Professor Maureen Raymo of Columbia University’s Lamont-Doherty Earth Observatory is a paleoclimate expert, and in this new video by Peter Sinclair for the Yale Climate Forum she explains how we can find out what might be in store when the planet finally catches up with its atmosphere. Not good news, especially if you consider that we’re certain to blow well past 400 ppm in coming decades, unless dramatic action is taken to reduce carbon emissions.
Peter Sinclair’s latest video in his This Is Not Cool series for the Yale Forum on Climate Change & the Media looks at why global warming — the steady accumulation of energy in the climate system — continues, despite media buying into the denier-promulgated myth of a hiatus, pause or slowdown in warming. Sinclair’s compiled interviews with real experts — Josh Willis, Kevin Trenberth, and James Hansen among them — and they explain what’s going on in a clear and compelling way. The next time someone claims that warming’s stopped, point them at this video.
Massive forest fires are raging beyond control in Quebec, sending huge plumes of smoke to the east. The Eastmain fire — top left in this image from NASA’s Earth Observatory — is spreading towards the east coast of James Bay, the southernmost extension of Hudson Bay, and is currently estimated to cover an area of 656,000 hectares (1.6 million acres). Smoke from the huge fires has already caused smog problems in Montreal and Maine, and is heading round the globe. On July 8 NASA’s Terra satellite spotted a great swathe of Canadian smoke crossing Norway and Sweden, and heading across the Baltic towards Finland.
The Eastmain fire is the largest wildfire in Canada since 1959, and is almost as big as all the wildfires that have burned in the US so far this year. Forecasts for the area show warm temperatures continuing for at least another 5 days, so the fire is likely to continue to spread.
Meanwhile, up on the Greenland ice sheet, Jason Box, Peter Sinclair and the Dark Snow team, who are investigating the effect of smoke particles deposited on the ice on melting, have successfully completed their first sampling mission. It’s well worth checking Sinclair’s blog for frequent updates — and lovely images — of the team’s progress.