• 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.”

Grist relies on the support of generous readers like you. Donate today to keep our climate news free. All donations matched!

• 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.