Are they environmental doom-mongering, journalistic hype or the straw that breaks the camel's back? William Laurance examines the complexities of tipping points - those small changes in a natural system that can sometimes provoke sudden and irrevocable collapse
… the same tiny temperature threshold in Siberia, where some 11 million square … Germany – are locked up in permafrost. The Siberian permafrost contains hundreds of …
To reduce the pressure on the world's productive land and to help assure long-term food security, writes Herbert Girardet, city people are well advised to revive urban or peri-urban agriculture. While large cities will always have to import some food, local food growing is a key component of sustainable urban living.
… Even in remote places such as Irkutsk in Siberia with its very short growing season, I … Even in remote places such as Irkutsk in Siberia with its very short growing season, I …