Word: carbone
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Dates: during 2000-2009
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...world attempts to break the carbon addiction that already has it well on the way to climate catastrophe, more clearly defined limits will be useful. But climate diplomats should remember that while they can negotiate with one another, ultimately, they can't negotiate with the planet. Unless we manage our presence on Earth better, we may soon be in the last days of our Long Summer...
...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...
...paper offers a useful way of looking at the environment, especially for global policymakers. As the world grapples with climate change this week at the U.N. and G-20 summit, some clearly posted speed limits from scientists could help politicians craft global deals on carbon and other shared environmental threats. It's tough for negotiators to hammer out a new climate-change treaty unless they know just how much carbon needs to be cut to keep people safe. Rockstrom's work delineates the limits to human growth - economically, demographically, ecologically - that we transgress at our peril...
...problem is that identifying those limits is a fuzzy science - and even trickier to translate into policy. Rockstrom's atmospheric-carbon target of 350 p.p.m. has scientific support, but the truth is that scientists still aren't certain as to how sensitive the climate will be to warming over the long-term - it's possible that the atmosphere will be able to handle more carbon or that catastrophe could be triggered at lower levels. And by setting a boundary, it might make policymakers believe that we can pollute up to that limit and still be safe. That...
...There are many benefits associated with such a project. Offshore wind farms will provide clean energy to the city of Cambridge and surrounding municipalities. As a consequence, wind farms will substantially reduce the region’s carbon dioxide emissions. Also, the costs of fossil fuels are volatile and subject to increasing world demand: By deriving more energy from wind farms, residents will be protected from fluctuations in oil and natural gas prices. Another key benefit is that the construction of an offshore wind farm would serve as a form of economic stimulus to the region. In particular, the project...