Use the loo before boarding Chinese Southern Airlines
Friends of the Earth sues Canada for not meeting Kyoto targets
IMO addresses ship emissions
Ozone restrictions not enough
More cities critically polluted
Tighter norms make air we breathe more poisonous
What "alternatives" farce
The black list
India fares the worst in a survey of Asia's polluted countries
Diesel confuses bees
Emissions interfere with floral odours that guide honeybees
A mother's challenge