Word: tree
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Dates: during 2010-2019
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...retrieve her purse. The Sparks story has even more in common with Cameron's. In both pictures, a U.S. soldier encounters a beguiling outsider with an affinity for green housing: Dear John's female lead works for Habit for Humanity, while Avatar's tries to protect her tribe's Tree of Souls. So for the past two months, the box office has been dominated by movies about strong women with a noble interest in real estate. (See the best movies of the decade...
...midday, Collins noticed the phones and electricity were not working. By the time she decided to leave the house, the sky was black. "She had no idea that she was in that much danger. She couldn't see anything," recalls Minten. "She crashed the car into a tree on the way out." Eventually, Collins spotted the faint headlights of another car through the haze and followed it up the windy road to a pub where she, her son and other Flowerdale residents stayed briefly before they were evacuated to Yea, a nearby town. The couple's weatherboard home burnt...
...Smithsonian Environmental Research Center, in Edgewater, Md., to show that their growth has accelerated significantly. On average, the stands were expanding at a rate of two 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...
What made the study possible in the first place was the fact that pretty much none of the forest in this part of the U.S. is virgin; it's been cleared for agriculture at various times, and then allowed to regrow in patches. The result: individual stands of similar trees ranging from about 225 years old to just five. "You could do this experiment by measuring a single stand of trees as long as possible," says Parker, "but a scientific career lasts only a few percent of the life of a tree." This way, he explains, you have a snapshot...
...experiments involving enriched CO2 levels were indeed a reasonable if rough proxy of what would likely happen in the real world as CO2 levels mount. Whether the forests' growth spurt might actually impact global warming by absorbing and storing more carbon is doubtful. While it's true that more trees suck up more carbon, they also produce more dark, heat-absorbing foliage, which somewhat counteracts the benefit. In addition, one extra tree per acre per year doesn't make much of a dent in the atmospheric carbon load, not to mention that it's still unknown what the effect would...