Study: Eastern Trees in the Midst of a Growth Spurt

[admin]

http://www.time.com
Study: Eastern Trees in the Midst of a Growth Spurt
By Michael D. Lemonick Saturday, Feb. 06, 2010

On average, the stands were expanding...two extra tons of mass per acre [annually], by...end of...study — the equivalent of a single two-foot-diameter tree....

[Theories why?]

1. a 12% increase in atmospheric carbon dioxide since the study began....

2. [Global warming].

3. an increase in the growing season, ...the length of time between the last frost in spring and...first frost in fall, which is also a consequence of warming.

http://www.time.com/time/health/article ... 67,00.html