PORTLAND, Maine—Clocks may not be the only thing falling back: That signature autumn change in leaf colors may be drifting further down the calendar.
Scientists don't quite know if global warming is changing the signs of fall like it already has with an earlier-arriving spring. They're turning their attention to fall foliage in hopes of determining whether climate change is leading to a later arrival of autumn's golden orange and red hues. http://www.boston.com/news/local/massachusetts/articles/2011/10/06/scientists_seek_to_document_later_fall_colors/
Article courtesy of The Boston Globe by Davdi Sharp/Associated Press
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