EarthShips must kill off the beasties in the ballast water Dangerous biological stowaways could easily be banished from ships' ballast. It's a disgrace that rich nations won't play ball, says Fred PearceComment
EarthCarcinogen levels soar in Canada's tar sand lakes Lakes near the Athabasca oil sands in Alberta contain higher levels of carcinogens than in the 1960s but it's not yet clear if this is a health risk News