Legislation

More than 1,000 firms employing more than 20 million people issue statement arguing that a robust Copenhagen agreement makes business sense

Late night in store for Copenhagen negotiators as African leaders insist they are willing to scupper talks and China refuses to budge on carbon monitoring

Businesses urged to add voice to calls for robust and ambitious climate change deal

Moderate Democrats and Republicans increasingly confident they can secure the 60 votes needed to pass cap-and-trade legislation

Green Party warns London may have to impose traffic-free days in some areas to avoid huge fines

Danish text raised 'trust issues' between rich and poor countries but won't derail deal, says UN secretary-general

Split emerges between developing nations, as think-tank argues Danish text contained more ambition from industrialised countries than first thought

Controversial draft agreement signals that key industrialised nations will support global scheme to raise climate funds from aviation and shipping

Pilot scheme promises to give 3,000 green technology patent applications high priority, slashing potential time to market

Diplomats attempt to calm anger over leaked document, insisting numerous informal texts are being prepared by negotiators