Word: carbonated
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...Holliday was one of a number of CEOs who came to the U.N. on Sept. 22 to mingle with world leaders and press them on climate change. Meanwhile the International Air Transport Association reiterated a pledge to cut its own carbon emissions in half by 2050 over 2005 levels. For airlines, like other businesses, the realities of climate change can't be ignored - a world where resources are scarcer and temperatures are rising will demand other ways of doing business, or companies will go out of business. "We all should realize that carbon has a cost," says Jeffrey Swartz...
...reporters, "It's the height of dishonesty to have a target for 2050 because none of us will be around to be held accountable." What the world really needs is for its leaders to think short term, to make the hard pledges that are required to start bringing global carbon emissions down. They can start at Copenhagen. And they should remember the words of Mohamed Nasheed, the President of the Maldives, whose small island country literally risks being erased from the planet by rising sea levels. "We are talking about not living because of climate change," he said on Sept...
...thousand years, the delicate ecological balance that kept the Long Summer going has become threatened. The rise of industrialized agriculture has thrown off Earth's natural nitrogen and phosphorus cycles, leading to pollution on land and water, while our fossil-fuel addiction has moved billions of tons of carbon from the land into the atmosphere, heating the climate ever more. (See the top 10 green ideas...
Regarding climate change, for instance, Rockstrom proposes an atmospheric-carbon-concentration limit of no more than 350 parts per million (p.p.m.) - meaning no more than 350 atoms of carbon for every million atoms of air. (Before the industrial age, levels were at 280 p.p.m.; currently they're at 387 p.p.m. and rising.) That, scientists believe, should be enough to keep global temperatures from rising more than 2°C above pre-industrial levels, which should be safely below a climatic tipping point that could lead to the wide-scale melting of polar ice sheets, swamping coastal cities. "Transgressing these boundaries...
...three of the nine cases Rockstrom has pointed out, however - climate change, the nitrogen cycle and species loss - we've already passed his threshold limits. In the case of global warming, we haven't yet felt the full effects, Rockstrom says, because carbon acts gradually on the climate - but once warming starts, it may prove hard to stop unless we reduce emissions sharply. Ditto for the nitrogen cycle, where industrialized agriculture already has humanity pouring more chemicals into the land and oceans than the planet can process, and for wildlife loss, where we risk biological collapse. "We can say with...