"People across the globe can track the proposals and plans of countries to combat climate change via an online 'climate pledge tracker', launched today by the UN Environment Programme (UNEP).
The 'tracker', which is being updated as new proposals are made during the UN climate convention meeting in Copenhagen, compares and consolidates all the national pledges made so far with the scientific goal of getting the world at or under a 2 degree Celsius rise compared to pre-industrial levels.
Experts estimate that what is needed is to bring emissions of greenhouse gases down to 44 billion tonnes (44Gt) of CO2 equivalent by 2020 in order to give the world a 50 percent chance of meeting that temperature target.
After 2020, emissions need to be cut to 16 billion tonnes (16 Gt) of CO2 equivalent in 2050. Meeting a 1.5 degree Celsius goal, which some countries are calling for, will require even more ambitious emissions reductions over the next 40 years."