Thin forestAug. 22, 1981: A U.S. government report predicts that steadily rising global temperatures will melt land-based ice caps and glaciers, raising sea levels.

Aug. 22, 2002: In a move that is roundly criticized by environmental groups, U.S. President George W. Bush unveils the Healthy Forests Initiative. The proposal calls for increased thinning of forests to reduce wildfire risks. Critics say it’s a thinly veiled gift to the timber industry that will do more harm than good to forests.

Aug. 22, 2008: Canada establishes three new National Wildlife Areas totaling more than 1.1 million acres to protect bird species on Baffin Island.

Aug. 22, 2012:  In one of the worst wildfire seasons in history, blazes darken skies and threaten communities in California, Washington State, Idaho, Utah, Montana and elsewhere.  Warm weather, drought, and an infestation of tree-killing beetles are blamed.

Photo: Kevin and Friends/Flickr

This feature is compiled by Peter Dykstra, an MNN contributor and publisher of Environmental Health News and The Daily Climate.