Lake Titicaca is threatened by pollution
Lake Titicaca is the largest reserve of freshwater in South America, but it could soon be completely contaminated.
Activist Hilda Flavia Nakabuye's speech at the C40 in Copenhagen
Low-tech initiatives: Providing villages with water without using any electricity
France: A pristine nature reserve in the Alps
Brazil: tarballs have been piling up on over 100 beaches
Interview: Native Americans are facing a new threat according to Casey Camp Horinek
Why is Copenhagen such a sustainable city?