Word: ecologist
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...their carbon emissions to developing nations through global trade - by importing goods and services from abroad - thereby shrinking their carbon footprints while inflating those of major exporting nations like China. "It's surprising just how much this effect is driven by the U.S. and China," says Steven Davis, an ecologist at the Carnegie Institution and the lead author of the PNAS paper. "It is significant." (See the top 10 green ideas...
...extra tons of mass per acre per year, by the end of the study - the equivalent of a single two-foot-diameter tree, if you could grow a tree that big in a year. "We don't know exactly when it started," says co-author Geoffrey Parker, a forest ecologist at the Smithsonian. But the scientists do have an idea of the reason - or rather, three possible reasons, all of which are likely to be interrelated...
...short, opposite sides of a mountain may have different climates, even though they're close to each other. In areas with varied terrain including lots of hills, therefore, hospitable conditions might be available relatively nearby. "That was the unexpected message," says Loarie, an ecologist at the Carnegie Institution for Science at Stanford University. "There's lots of buffering capacity in heterogeneous landscapes...
...idea that you, dear reader, might be asked to take seriously. Not long ago, Nance Klehm, 44, a self-described radical ecologist in Chicago, invited her neighbors to stop using their toilets and start saving their poop. More than half of them - 22 of the 35 households - accepted her proposal. In three months she picked up 1,500 gal. (5,700 L) of excrement, which she'll give back to participants this spring after she and Mother Nature have transformed it into a rich bag of fertilizer. "I've sent a sample in for a coliform test," Klehm says. "There...
...know these areas are going to stay protected? What happens if a forest burns to the ground?" A third concern is calculating how much carbon is stored in a forest, and what emissions are actually avoided by preserving it. In September a multinational research team led by French landscape ecologist David Gaveau asserted that the Ulu Masen scheme might not significantly reduce deforestation in northern Sumatra because much of the ecosystem is upland, inaccessible and therefore unlikely to be logged anyway...