Lightning seeds
Australia banks on "forest power" to light up towns
GETTING HOTTER
Threat to forests
A problem with pollen
Global warming could worsen allergies, says a new study
Tackling cow belching
Fired up about ozone
Flying fines
Clean move
China cuts down its carbon dioxide emissions
Low carbon emissions
Low carbon emissions
UNITED NATIONS
Going under
American lifestyle can be compromised
Corals in trouble
Massive coral bleaching strikes Great Barrier Reef
Maize trouble
Hot clime to effect the crop
US environmental protection agency under fire
Bytes
Myopic relief
Sailing with buckets
Winner takes it all