Dirk Forrister of the International Emissions Trading Association explains why blue chip firms want to see progress at Lima on linking growing carbon markets
Christiana Figueres says COP20 climate change talks in Peru must 'write history'
Hopes rise for global warming deal after US-China carbon commitments inject much-needed momentum into Peru talks
Time is running out for agreeing legal framework for emissions cuts, EU official warns
Todd Stern claims the world will have to forgo developing reserves of oil, coal and gas in order to solve global warming
But Gulf States continue to resist calls for extension to Montreal Protocol, as Indian government insists it will drive a hard bargain
Green Climate Fund pledging conference in Berlin falls just short of $10bn target
Energy secretary Ed Davey warns against 'little Englander' approach as donation to UN's Green Climate Fund announced
Report warns global CO2 emissions may have to hit zero soon after the middle of the century if world is to stay within 2C temperature rise
$10bn pledged for Green Climate Fund to help countries cope with global warming falls short of original commitment, say UN observers