• Kansas governor again vetoes a coal plant.

• Houston and Los Angeles are the top-polluting cities in the U.S.

Time considers “how to win the war on global warming.”

• Formaldehyde exposure is linked to Lou Gehrig’s disease.

Grist thanks its sponsors. Become one.

Biofuels aren’t evil, says Brazil’s president.

• Dogs and cats are found to be full o’ toxic chemicals.

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