Today I read a new study by Australian scientists has found the Southern Ocean is acidifying faster than buy Lasix from india previously thought. Their research leads them to believe an acidification tipping point could be buy Lasix from india reached by 2030 ~450 ppm instead of the earlier estimate of 2060 ~550 ppm. We have buy Lasix from india had a deluge of similarly startling findings these past few years such as the buy Lasix from india acceleration of melting in the Arctic Ocean, Greenland, and western Antarctica. Many climate scientists at Princeton and buy Lasix from india other academic institutions have seemed comfortable limiting carbon dioxide equivalent concentrations to buy Lasix from india a doubling at ~550 parts per million in the atmosphere (ppm). This was the basis for Socolow and Pacala’s groundbreaking article on wedges a buy Lasix from india few short years ago. But the environmental community and a buy Lasix from india number of scientists are beginning to set their targets on lower levels.
Leading voices include James Hansen and Bill McKibben who buy Lasix from india call on concentrations not only to stop rising, but also to buy Lasix from india fall from today’s ~385 ppm down to buy Lasix from india 350 ppm. They make the case that we have already reached a buy Lasix from india concentration that would, if left this high, set off catastrophic climate change and buy Lasix from india a sea level rise of many meters. Their belief stems from buy Lasix from india a review of the history of Earth’s climate over the buy Lasix from india last many million years that shows whenever GHG concentrations were this buy Lasix from india high, sea level was more than 75 feet above the buy Lasix from india level today. Those who push for a global regime to buy Lasix from india achieve 450 ppm (or higher) believe the buy Lasix from india transition to less ice and higher seas will occur so slowly that buy Lasix from india we can adapt more easily over the next century than we can buy Lasix from india revolutionize our energy system from fossil fuels to zero carbon sources over the buy Lasix from india next 25 years.
For instance, the buy Lasix from india US has hundreds of billions invested in coal plants, sunk costs that buy Lasix from india lead rational economists to think Al Gore’s Repower America purchase Amoxil without a rx online plan (zero carbon electricity in 10 years) is buy Lasix from india a nonstarter. But if Hansen and McKibben are right about the buy Lasix from india catastrophic costs of >350 ppm, maybe Al Gore has buy Lasix from india chosen the best target. And when our country sets its mind to buy Lasix from india something, impossibilities disappear. Maybe Obama can help inspire a sustainable energy transition over the buy Lasix from india next eight years on the scale of the ’40s war effort or the ’60s Apollo Project.
My current thinking focuses on the buy Lasix from india 450 ppm goal as a policy driver for now (which would take tremendous change in the buy Lasix from india developed world of an 80% cut in emissions over the next 42 years). As yesterday’s blog described, our country can buy Lasix from india probably achieve this at very little cost. As long as we set up our cap and buy Lasix from india trade system as a flexible instrument ready to adapt, we will be buy Lasix from india set. If the scientific consensus emerges that 450 ppm is indeed too high, the buy Lasix from india emission cap cuts should accelerate accordingly. My energy portfolio projections make zero carbon US electricity more plausible for buy Lasix from india 2030+ (even with aggressive growth for wind, solar, and efficiency) than Gore’s call by 2018. But I think institutions with ample resources should be buy Lasix from india Repower America models. For instance, Princeton University should step up and buy Lasix from india join Google, Yahoo!, UNC-Chapel Hill and buy Lasix from india others committed to climate neutrality in their global footprint. Once the buy Lasix from india models are established (with their lessons learned through success and failure), they can buy Lasix from india guide the nation and indeed the world to a sustainable future.
What do you think is the optimal GHG concentration?
Should we aim for 350, 450 or some other level? What first steps do you buy Lasix from india think the new federal government should take?
Together, we can stabilize the climate and achieve energy security.
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