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Trees Using Water more efficiently Due to Carbon Dioxide Increase

2013-07-11 10:02:00| Climate Ark Climate Change & Global Warming Newsfeed

Nature World News: Trees are using water more efficiently now than they did two decades back, according to a new study from Harvard University and the U.S. Forest Service. Researchers said that increased levels of carbon dioxide along and lower levels of water in many parts of the world have increased the efficiency of water usage in trees. Plants use carbon dioxide from the atmosphere via a process called photosynthesis, where they lose water through leaves. The ratio of water loss to fixed carbon is important...

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Some Trees Use Less Water Amid Rising Carbon Dioxide, Paper Says

2013-07-11 01:59:00| Climate Ark Climate Change & Global Warming Newsfeed

New York Times: The fate of the worlds forests on a warming planet has long been one of the great unanswered questions about climate change. Now, new research is complicating the picture further, suggesting that big shifts are already under way in how forests work. A paper published Wednesday suggests that trees in at least some parts of the world are having to pull less water out of the ground to achieve a given amount of growth. Some scientists say they believe that this may be a direct response to the rising...

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Trees best left to generate carbon credits

2013-07-08 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed

Sydney Morning Herald: It makes better financial sense for the native forests of southern NSW to remain un-logged and left to generate carbon credits, a new report suggests. NSW taxpayers would be able to generate carbon abatement, conservatively valued at about $222 million over the next 2½ decades, and use some of the money to fully compensate timber companies, according to the analysis by think tank The Australia Institute. The NSW government disagrees, saying the report is based on an unrealistically high...

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Ash Trees Under Siege

2013-06-26 18:58:00| Transmission & Distribution World

By B. Scott Bennett, Indiana Michigan Power The emerald ash borer (EAB) is a wood-boring beetle indigenous to countries in northeastern Asia. It was identified as the killer of ash trees in southeastern Michigan. The damage that resulted in the years after its discovery was aggressive and extensive, with tens of millions of dead ash trees reported in 13 states, so far. What is new for these eastern and central cities, such as Columbus, Ohio, and Indianapolis, Indiana, is that the damage will be very evident, whereas before it was only suspected and anticipated. read more

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Ukraine: At Chernobyl, danger lurks in the trees

2013-06-24 14:36:16| Climate Ark Climate Change & Global Warming Newsfeed

Daily Climate: Most days Nikolay Ossienko patrols the forests surrounding the Chernobyl nuclear power plant, clearing brush and dead trees from the grid of fuel breaks that crisscross the 1,000-square-mile area. But on hot July afternoons, when black thunderheads loom on the horizon, he climbs a rusty ladder 75 feet up a rickety fire tower. When he spots smoke, he radios the six other towers to pinpoint the location, then trucks off to the blaze. If these forests burn, strontium 90, cesium 137, plutonium 238...

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