Boundaries for a Healthy Planet
Scientists have set thresholds for key environmental processes that, if crossed, could threaten Earth's habitability. Ominously, three have already been exceeded
Stories by Scott C. Doney
The Dangers of Ocean Acidification
Much of the carbon dioxide given off from the burning of fossil fuels goes into the ocean, where it changes the acid balance of seawater. The repercussions for marine life may be enormous
February 20, 2006 — Scott C. Doney
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