In anticipation of the summit to take place in Copenhagen from December 7 to 18, heads of state from around the world have spoken out in support of the fight against global warming. Beyond the good intentions, is there a real will to tackle one of the biggest challenges of the century?
Secretary of State Hillary Clinton says the United States will help mobilise $100 billion dollars a year by 2020 for the fight against climate change if a "strong accord" is reached at a deadlocked summit on climate change.
Danish police fired tear gas and made more than 200 arrests Wednesday, as hundreds of protesters tried to push through barricades outside the Bella conference centre, where a critical summit on climate change is underway.
Negotiations at a critical UN climate summit in Copenhagen have stalled after African nations backed by the G77 group of developing countries walked out of the session, accusing rich countries of trying to kill the existing UN Kyoto Protocol.
The US Environmental Protection Agency (led by Lisa Jackson, pictured) has moved to limit greenhouse gases without the need for Congress to pass new laws, sparking concern among Republicans that industries will be saddled with costly new regulations.
The biggest climate meeting in history, with participants from 192 nations, begins in Copenhagen, seeking to overcome distrust between rich and poor nations to agree to curbs on greenhouse gas emissions and raise billions for the poor in aid.