Emissions

Rich nations need to cut CO2 emissions 90 per cent, says national think-tank

New Zealand biofuel firm Lanzatech says proprietary microbe uses steel factory emissions to help produce ethanol

Separate study puts nation at bottom of rankings for climate change preparedness

Overseas investors being tapped for $10bn Gujarat project

Delta follows BA and others accused of running flights with no passengers on board

Demands from countries such as China that Japan takes tougher action on climate change appear to have had an effect

Better Place hopes pilot scheme will lead to adoption in other cities

Government emphasises that per capita emissions will still rank below global average

Carbon market activity remains thin, as US delays Waxman-Markey

Report argues developed nations would need to share expense of aggressively reducing CO2 levels