Forest Action Plans: Guidelines for Forests

Forest action plans provide an analysis of forest conditions and trends in your area.

Find your state.

Pine trees help reconstruct a long-ago drought

Monday, November 14, 2011

Analyzing tree rings to reconstruct ancient climates, researchers have found compelling evidence of a long dry spell in the Southwest stretching through the first four centuries of the Christian era and punctuated by more acute dry stretches.

Issue Topic: 

Educational Materials Store

Subscribe to our e-newsletter