Word: co2
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Dates: during 2000-2009
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...atmosphere, as opposed to being radiated or reflected back into space. In this sense, the greenhouse effect is not all bad. Without a little bit of it, the earth would be a cold, dead place, with an average temperature as low as -0.4°F. Unfortunately, by adding CO2 and other greenhouse gases to the atmosphere, we have, in a sense, thrown another quilt on the planet when we were perfectly comfortable to begin with. (Watch TIME's video "The Truth About Solar Power...
...Eggert is in charge of science and technology policy for the state agency, which sets greenhouse-gas performance standards (GHGP) and develops "miles per gasoline gallon equivalents" (MPGGE) for electric and hydrogen-fuel-cell vehicles so it can rate the amount of harmful CO2 released into the air. It's all very confusing and is likely to get even worse, according to Eggert, who doesn't "even bother" with GM's 230-m.p.g. claim. "We ignore such claims entirely," he says. "We look at total energy consumed so we can figure out how much greenhouse gas is being emitted into...
...CO2 to the atmosphere and the climate will get warmer - that much is well established. But climate change and carbon aren't in a one-to-one relationship. If they were, climate modeling would be a cinch. How much the globe will warm if we put a certain amount of CO2 into the air depends on the sensitivity of the climate. How vulnerable is the polar sea ice; how rapidly might the Amazon dry up; how fast could the Greenland ice cap disintegrate? That's why models like those from the Intergovernmental Panel on Climate Change spit out a range...
...will not, do anything that would limit India's economic progress," the uneasy exchange illustrated a troubling reality: with less than five months to go before the crucial U.N. climate-change summit in Copenhagen, there remains a deep chasm between developed and developing nations on the issue of CO2. Unless that gap is narrowed - and the world can find a way to fairly reduce emissions from rich countries while making developing nations pay their fair share - years of global climate-change negotiations could finally collapse. (See pictures of the elephants of India and the rest of Asia...
...them. Ramesh pointed out that even in 2030, India's per capita emissions would still be far lower than levels in developed countries - but sheer population growth means India will become a bigger carbon emitter on the whole. In the future, developing nations will contribute the large majority of CO2 emissions, but if the world has to wait for countries like India to get rich before they begin cutting carbon, the planet is doomed...