World's big trees are dying: Alarming increase in death rates among trees 100-300 years old

This is amazing to read, because it talks about the declining of the largest trees around the globe! What is the causes of it? Check it out by yourself!!!!!







World's big trees are dying: Alarming increase in death rates among trees 100-300 years old
 References:
http://www.sciencedaily.com/releases/2012/12/121206162519.htm