Not all fun at the fair: Many people face serious injury at funfairs this bank holiday weekend. The government's safety inspectors want tougher rules to control the way fairground equipment is designed to thrillFeatures
Licensed to thrill: Human frailty rather than engineering expertise, it seems, limits the design of modern rollercoasters. But they are still becoming bigger and more daringFeatures
Focus: Return to Turtle Bay - Four-fifths of the Mediterranean's loggerhead turtles lay their eggs on one Greek beach - but for how much longer?News
Focus: Sitting on a toxic time bomb - Thousands of homeowners across Britain do not know that their houses stand on land contaminated by previous use. New government plans could give them a shockNews
Earth Summit: Earth at the mercy of national interests - Fred Pearce reports from Rio de Janeiro on the final days of the Earth SummitNews
Despondency descends on Rio: Fred Pearce reports from the first week of the Earth Summit in Rio de JaneiroNews