Huka Falls, super powerful waterfalls in New Zealand
This geological wonder might be small, but it's extremely powerful. It is even used to produce a part of New Zealand's electricity.
Whales are worth quite a lot in terms of CO2 capture
How to make a water filter
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