26 de abril de 2008

Sinais dos tempos (do clima)


"“He that troubleth his own house shall inherit the wind.” A Biblical proverb for our times, it turns out…. The bark beetle is devastating North American trees (see “Climate-Driven Pest Devours N. American Forests“). Global warming has created a perfect climate for these beetles — Milder winters since 1994 have reduced the winter death rate of beetle larvae in Wyoming from 80% per year to under 10%, and hotter, drier summers have made trees weaker, less able to fight off beetles. [Picture shows forests turned red by beetle.]"




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