Monday, February 27, 2012

Tapping our trees earlier

We might extract maple sap earlier than usual, if climate change has its way with us.
sugar maple trees now release their sap approximately 8.2 days earlier and stop producing usable sap 11.4 days earlier than they did 40 years ago. This translates to an approximate 10 percent loss in the duration of the season. These trends coincide with regional climate changes recorded in the last 50 years.
Boiling sap in pans.  Ceredwyn's work, 2009.

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