• 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.”

All donations matched! Reader support helps sustain our work. Donate today to keep our climate news free.

• 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.