America's school buses are getting greener
Snot-filled whale research takes flight
Kerry warns of "climate refugees"
Homes at risk as Spanish fire burns out of control
Iraqi marshes face environmental crisis
Erika leaves south Florida soaked
Zoo animals get their annual checkup
Mexican circus animals arrive in U.S.
Heavy rains drench Australia's southern coast
Volcano erupts on French island of Reunion
Wars improve air quality in the Middle East
Energy probe pits Morales against indigenous groups