| Environment, News, Resources | 0 Comments | Apr 04 2009
by Rex Weyler
Deep Green, March 2009
Deforestation contributes to global warming. Rising earth temperatures kill forests. Dying forests release more carbon. Atmospheric carbon increases planet temperatures.
This cycle of forest collapse represents a critical feedback loop that will likely drive warming for centuries, change life cycles on Earth in general, and usher in a sweeping transformation of human civilization.
Worldwide forest destruction – due to logging, human habitat sprawl, and clearing for crops such as soybeans and palm oil – continues at a net loss of about 15 million hectares each year. Many cleared forests are burned on the site. Meanwhile, forests die or grow slower due to global warming. Declining forests absorb less CO2 and release more carbon.
Drought, heat, and fires
Drought and heat are making forests more susceptible to insects and fire. David Gilbert, with the Commonwealth Scientific and Industrial Research Organisation in Australia will publish a study this year that shows forests have less biomass and increased mortality in warmer earth conditions.
Due to warmer temperatures, bark beetles have attacked boreal forests in the US, Canada and Russia, killing mature trees and making forests vulnerable to fire. Carbon, sequestered by forests over centuries, can be released in a few days by wildfires, as experienced in southern Australia in recent years. Fires are increasing worldwide and now contribute about a third as much atmospheric carbon as burning fossil fuels. Read the complete Post.

