Word: co2
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...good for the climate either. According to some estimates, black carbon may be responsible for as much as 18% of the planet's warming, making it the No. 2 contributor to climate change after carbon dioxide, which accounts for 40%. "The world could think that we just cut CO2 and the problem is solved and we all go home, but it's not," says Veerabhadran Ramanathan, a climatologist from the Scripps Institution of Oceanography and an expert on black carbon. "That's my nightmare." (See the world's most polluted places...
...time. Though the ship still primarily relies on bunker fuel, it's a step toward the company's goal of zero emissions by 2050. NYK Line already has its next green transport in mind: the Super Eco Ship 2030, a concept ship that uses solar sails to lower CO2 emissions...
...question the accuracy of today's climate models, and by extension, whether we should really be concerned about potentially catastrophic temperature increases over the coming century. They further point out that plants may indeed thrive in a future with higher carbon dioxide levels - after all, greenhouses pump in extra CO2 to encourage growth - but they fail to note that hotter summers and increasing droughts could threaten agriculture. They assert that sea levels can rise only 1.5 ft. over the coming century, ignoring the very real risk of accelerated melting of the Greenland and Antarctic ice sheets, which would multiply that...
...could be a pitfall. Say we try to use Myhrvold's giant-garden-hose scheme (after hopefully giving it a better name) without reducing carbon emissions. We could end up in a situation in which we can't abandon geoengineering without risking sudden, disastrous warming due to unchecked CO2 emissions. Then, what was meant to be a quick, cheap fix would turn out to be a trap. And while Levitt and Dubner say the fix is appealing at least in part because it's politically impossible to imagine the world agreeing on a common carbon cap - pointing to the problems...
...recently converted to burning sawmill wastes, allowing its heating-gas bill to immediately drop from $6,600 a month to $1,100. Townsend, Mont., schools converted their boilers from propane and oil to wood pellets. The new system is expected to pay for itself in fuel savings, plus selling CO2 emission offsets through the Climate Trust. Meanwhile, Vermont's Middlebury College is completing a central thermal biomass system that will provide heating and cooling, saving $2 million a year on fuel-oil bills, plus generating one-fifth of campus electrical-power needs. Middlebury is planting fast-growing willow shrubs...