Seeing green

What’s foul and gross and green all over? China’s Taihu Lake during a massive cyanobacteria bloom. Hans Paerl, seen here scooping up some of the algae, is consulting with the Chinese to control the blooms.

Developing countries aren’t the only places vulnerable; these blooms have killed livestock who sought to slake their thirst from U.S. lakes, Paerl says. Global warming will make the problem worse because the blue-green organisms thrive during droughts and in extreme conditions.

In the end (of the world), Paerl says, there will be cockroaches and blue green algae. And in the very end, there will be the algae. Read the Aug. 31, 07 issue of Science or go to the Paerl Lab.


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