Word: co2
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...optimism broke on the rocks of realism. How can any fractional reduction in energy consumption or carbon dioxide (CO2) output in a small region of well-off America make a noticeable difference while mammoth developing nations such as China and India go on a rampage of power plant-building and car-buying? Will the environmental blindness of the economic growth of these and other developing countries—not to mention continued energy-intensive expansion in America—nullify the effect of every green project for years to come...
According to data published by Princeton Professor Robert Socolow in Scientific American, seven billion tons of CO2, the most important and abundant greenhouse gas, are emitted worldwide each year. At the current rate of emissions growth, the concentration of CO2 in the atmosphere will double pre-industrial levels by 2056—likely with catastrophic effects, the beginnings of which we may be seeing now in the form of polar ice caps that expand less every winter and thaw further every summer...
...approximately 250 metric tons of CO2 emissions that would have resulted from generating the same amount of energy as these two renewable energy projects would pale by comparison to the more than 2.5 billion metric tons of CO2 generated yearly at conventional American power plants...
Then there's the green card: the $24 million Q400 burns from 30% to 40% less fuel than--and emits half the CO2 of--a 70-seater regional jet and offers up to eight more seats. ATR says its light, $18 million 72-seater goes further, consuming 30% less fuel than the Q400 and 50% less than a regional...
...says it's reduced the amount of plastic in bottles 40% over the past five years. But if we're really going to cut the environmental cost of bottled water, the responsibility lies with consumers. It may be hard to do without the car--a much bigger source of CO2 than bottled water--and uncomfortable to forgo air-conditioning, but giving up the bottle is easy. Just turn on the tap. [This article contains descriptive text within a diagram. Please see hardcopy...