I had read about this and seen the satellite maps of Greenland earlier in the week. I thought it was important to reblog. It is scary.

Precarious Climate

Recent findings suggest climate change in Greenland may be approaching a tipping point, beyond which amplifying feedbacks could lead (probably over centuries) to complete melting of the ice sheet, raising sea level by about 7 meters.

In June, a team of glaciologists led by Jason Box predicted that we would see melting across 100% of the ice sheet’s surface area in summer within a decade. They drew that conclusion from data on the Greenland ice sheet’s surface reflectivity, or “albedo”, showing the surface has gotten darker over the last 12 years. A darker surface absorbs more heat, leading to more melting, causing albedo to decrease further, and so on in a vicious circle.

The ice naturally gets less reflective in summer because the shape of the snowflakes changes, but in 2012 Greenland has become much darker than in previous summers. This is occurring particularly at high elevations, which were…

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Shattered Sky–An Important and Hopeful Documentary by Steve Dorst and Dan Evans

Tonight I was lucky enough to attend a premier of the film Shattered Sky in Washington D.C. as part of the closing night of the Environmental Film Festival.  (Full disclosure: I was invited because I am friends with one of the filmmakers, Dan Evans.)  Held in the majestic Carnegie Institution for Science at 16th and P streets with a following reception at the Bar at the Hotel Rouge, the film seemed like a good way to spend a Sunday night and catch up with some friends I haven’t seen in a while.

I am so glad I went.

The film–which will be shown on PBS stations in the fall–deals with two distinct environmental situations, separated by four decades. In the 1970s, when the hole in the ozone layer was first detected, the science showed that CFCs were the main culprit, and America and Americans led the way to curtail the use of these photo-carbons around the globe. Fighting against an indifferent world, many of whom had financial interests in the status quo, the EPA–under the Reagan administration–pressed its case hard. The climax of this fight occurs in a marathon session in Montreal when America held sway and the rest of the world finally signed on to greatly limit the use of these ozone-depleting agents. The film  celebrates this moment in American leadership, touting the efforts of Johnson, Nixon, Carter and Reagan admnistrations. It is this battle–and the victory–that is the crux of the film.

Now fast forward, thirty years.  Climate-change is today presenting even more dire predictions. But the topic has become a political tug-of-war.  With the “ozone” problem, there seemed to be immediate repercussions for the public–such as skin cancer and cataracts–and the public made its voice  heard through the marketplace, refusing to buy aerosol products, for instance, and forcing industry’s hand to come up with alternatives. The effects of climate-change, however,  are not so immediate–and the possibilities of market pressures from the public are unlikely given our modern way of life. Plus, while we are enjoying this balmy spring, it is hard to imagine immediate  down-side.  But the down-side is there, and it is drastic. The film deliberately tries to skirt partisan politics; instead, it asks for America to take on the kind of leadership that it showed in the “ozone” battle many years ago.  And it asks, because the situation is urgent.

Unlike many environmental documentaries, however, Shattered Sky does not leave one feeling helpless and doomed, but instead is full of hope. For if America was once able to forget its political differences and  fight together to counter an environmental disaster such as the depletion of the ozone layer, it can certainly rise to the occasion once more.

The science is there.  Those who oppose it, who try to find holes in the facts, do so for other reasons than truth, reasons that often deal with economy, industry, and self-interest. The film is riveting, rational and cautiously hopeful, even as it recognizes the possibility and the consequences of no action at all. Check out the film’s web site for more information.  Check out its Facebook page. And more importantly try to check out the film.

The Shattered Sky web site is here: http://www.shatteredsky.com/

The IMDB review is here: http://www.imdb.com/title/tt1795650/