EarthOzone hole: How we are misled in the fight to cut smog Obama wants to cut ozone pollution, but Republicans are crying foul over the cost. Europe is being tougher… or is it? Much is obfuscation, finds Fred PearceComment
EarthIs Earth in a new geological phase thanks to us? It may be time for science to recognise Earth's new era – one shaped by humans. So argues a geologist involved in defining new phases in geological time Comment