As De Boer reports "good progress" on technology transfer, Brown and Sarkozy pledge increase in funding that will take EU contribution to fast-track fund above €2bn a year
Around 110 leaders now expected to attend final days of summit
As Google debuts new deforestation tracking tool, president's backing for REDD plan increases chances of forest protection deal
Reports claim EU is preparing to offer €5.4bn to three-year fast-track climate fund
White House negotiating team promises "robust engagement", takes tough stance on China
Small island states and African nations insist proposal for 1.5 degree temperature target is not up for negotiation
Experts hopeful Copenhagen deal could contain commitment to lower trade barriers for key clean technologies, kick-starting stalled Doha negotiations
Britain, Australia, Mexico and Norway table proposal for new climate fund to be managed by UN-backed board
Danish text raised 'trust issues' between rich and poor countries but won't derail deal, says UN secretary-general
Regardless of what happens in Copenhagen over the next week, public-private partnerships focused on addressing climate change have a bright future. Henry E Teitelbaum investigates