Every month, after I finish writing this climate dispatch, I think that this is the most dire, intense, mind-bending, heartbreaking dispatch I have written to date. And every month, for the more than two years that I've been writing them, I am correct.
The global temperature has increased to a level not seen for 115,000 years, requiring daunting technological advances that will cost the coming generations hundreds of trillions of dollars, according to the scientist widely credited with bringing climate change to the public’s attention.
Yesterday, 375 of the world’s top scientists, including 30 Nobel Prize winners, published an open letter regarding climate change. In the letter, the scientists report that the evidence is clear: humans are causing climate change. We are now observing climate change and its affect across the globe.
The planet’s air conditioning system is on the blink, working intermittently, losing its glinting, lustrous white reflectiveness, as it turns deep blue, absorbing 90% of sunlight rather than reflecting it back into outer space. The repercussions of Arctic sea ice loss are immense.
Susan Lozier is having a busy year. From May to September, her oceanographic team is making five research cruises across the North Atlantic, hauling up dozens of moored instruments that track currents far beneath the surface. The data they retrieve will be the first complete set documenting how North Atlantic waters are shifting — and should help solve the mystery of whether there is a long-term slowdown in ocean circulation. “We have a lot of people very interested in the data,” says Lozier, a physical oceanographer at Duke University.
The planet is warming at a pace not experienced within the past 1,000 years, at least, making it “very unlikely” that the world will stay within a crucial temperature limit agreed by nations just last year, according to Nasa’s top climate scientist.
“The data shows major reorganization of the cloud system… I consider this as the most singular of all the things that we have found, because many of us had been thinking the cloud changes might help us out, by having a strong feedback which is going the other way instead of amplifying it.” — climate scientist Veerabhadran Ramanathan
Here at the Energy and Environment blog, we cover, regularly, the tipping points of climate change — how, for instance, the glaciers of West Antarctica may already have passed a key threshold that leads to unstoppable melt.