The death rate of many of the biggest and oldest trees around the world is increasing rapidly, scientists report in a new study in Friday's issue of the journal Science. They warned that research to understand and stem the loss of the trees is urgently needed.
"It's a worldwide problem and appears to be happening in most types of forest," said the study's lead author, David Lindemayer, a professor at Australian National University and an expert in landscape ecology and forest management.
http://green.blogs.nytimes.com/2012/12/07/mighty-old-trees-are-perishing-fast-study-warns/?ref=energy-environment
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