Summary: Scientist Paul Beckwith speaks out on Arctic methane and abrupt climate change - and ways to stave it off. Scientist Douglas McCauley, University of California: industrializing the ocean could lead to mass extinction of marine animals. Radio Ecoshock 150128 Download or listen to this Radio Ecoshock show in CD Quality (56 MB) or Lo-Fi (14 MB) Or listen on Soundcloud right now! It's a long blog this week. There are so many big stories to cover. You may have to take it in pieces. Anyone who followed all the links, and watched the videos on offer, would likely get the equivalent of a week or two of a college course on climate change. If you came for the big story on extinction in the oceans, scroll down a couple of page/screens to my interview with Dr. Douglas McCauley. INTO THE RED ZONE According to one climate scientist, "We are at the extreme weather stage and rapidly heading into the red zone." That is when "all hell breaks loose". Who else says so? Your insurance company. Both Lloyd's of London and Zurich Insurance in Switzerland just warned of extreme weather events coming this year of 2015. The climate scientist is Paul Beckwith from the University of Ottawa. He has two Masters Degrees, and is working on his PHD in climate science. Paul lives out the late Steven Schneider's call for scientists that communicate. I follow Paul's Tweets, Facebook page, and You tube videos to see what's new and what's hot. Paul is this week's feature guest on Radio Ecoshock. We've tons to talk about, after the hottest year on record, climate talks in Lima, Peru - Paul was there - and still more alarming news coming out of the Arctic. SHOULD YOU FEAR A 50 GIGATON METHANE BURST IN THE ARCTIC? Before we get to that important stuff, I ask for Paul's help in a little fact-checking. A couple of people seem to have misunderstandings about the possible 50 gigaton burst of methane suggested by Dr. Natalia Shahkova from the University of Alaska, and her Russian colleagues. One You tube speaker says this 50 gig burst has already begun. As Paul tells us, that is not correct. Yes methane emissions from the Arctic are increasing due to melting of frozen methane ("clathrates") on the sea bed, and from melting permafrost. But the increased methane is in the order of millions of tons, not billions of tons (also known as gigatons.) Another scientist on You tube says the Shakhova's 50 gigaton release could happen "any day now". Yes, that's technically true. But the eruption depends on more than just melting sea ice. It also requires some sort of undersea event, whether an earthquake, or a land-slide under the sea, for example. That would release the methane held many meters below the sediment. I give the example of Vancouver, where seismologists say an earthquake is over-due, based on past records. They've been saying it could happen any time for the past 35 years or more. The great West Coast quake could happen tomorrow, or it could happen 200 years from now, or 500 years. I'm not a scientist, but I think I heard the last major release of methane from under the sea is thought to be over 8,000 years ago. [See more on this from P. Beckwith below.] So don't sell your house and move to Alaska or the Yukon based solely on fear of a methane burst. That doesn't mean I'm saying it won't happen, or that I'm not seriously concerned about rising methane levels in the Arctic. It is a mega-threat, as some Arctic scientists say. There will come a point, and we don't yet know when, that methane from the Arctic could overwhelm our own carbon dioxide emissions. We may already have crossed an unseen tipping point where this is unstoppable. I'll have more about unseen tipping points in my coming interview with Dr. James White. Meanwhile, Paul Beckwith and other scientists in the Arctic Methane Emergency Group say we should try extreme means to restore the reflective cover of white ice on the top of the world. Paul says we could cool ocean currents going in the Arctic, while mimick
