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Trees still affected by 1976 drought

2013-07-24 01:59:00| Climate Ark Climate Change & Global Warming Newsfeed

BBC: The sizzling summer of 1976 caused permanent changes to British forests, new research suggests. Scientists found that the long dry spell that year - the UK's most intense drought between 1914 and 2006 - killed off many drought-sensitive beech trees. Growth of the trees is still restricted more than 30 years later, a study in the journal Functional Ecology said. The more drought-tolerant Sessile Oak survived better and is now dominating the beech. The scientific work was carried out at...

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Major storm rolls through Vegas, knocks out power, downs trees

2013-07-21 13:09:41| Semiconductors - Topix.net

NV Energy reports 33,000 people were left in the dark by this storm that packed winds as strong as 70 miles an hour.

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Heatwave: branches crash down from trees under 'stress'

2013-07-19 16:38:00| Climate Ark Climate Change & Global Warming Newsfeed

Telegraph: Experts says a phenomenon called "summer branch drop' has been occurring during the current spell of hot weather, and it is not entirely clear what causes it. The Arboricultural Association said it was aware of a number of reports of branches dropping off trees, an event it says is associated with prolonged hot spells. Paul Smith, a technical officer with the organisation, said: "Certainly there's a clear relationship between the weather conditions and the frequency of summer branch drop. ...

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Trees Using Water More Efficiently Due To Increase in Atmospheric Carbon Dioxide

2013-07-14 18:01:00| Climate Ark Climate Change & Global Warming Newsfeed

Science World Report: A paper published online in the journal Nature Wednesday, examines how a dramatic change in atmospheric carbon dioxide levels makes trees thriftier with water. It is a known fact that atmospheric carbon dioxide boosts the growth of plants. To state that carbon dioxide is an important plant food is not a new argument. Many experts have expressed concerns over the fate of forests in the face of climatic changes taking place because such alterations directly and indirectly affect the growth and productivity...

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Study: Climate change causing trees to use less water

2013-07-13 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed

National Public Radio: Some trees seem to be adapting to climate change by using less water, according to a study by a team of researchers from several universities, including Indiana University, that was recently published in the journal Nature. Using atmospheric devices on a 150-foot tower in the Morgan-Monroe State Forest, IU researchers measured how much water vapor and gases were being absorbed and released by the forest. That information, combined with similar data from forests around the world, has led researchers...

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