trees more colorful

The Tree Council this week said global warming caused this season’s russet reds to deep golden yellows. The lack of moisture in autumn means that a different pigment is produced called anthocyanin, says Nick Collinson, conservation policy adviser at the Woodland Trust. This gives leaves more of a red colour.

“Climate change models for the UK suggest we are likely to have hotter and drier summers, which will encourage the kind of colours you normally see in a New England fall.”
The Guardian 18 Nov 2004
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see also – having it both ways