New Delhi, Aug 28 - With just 100 days to go for the UN's climate change talks in Copenhagen, green activists Friday unveiled a life-size ice sculpture here and let it melt on grass, warning global leaders to act fast on global warming by reducing pollution and carbon emissions.

At Copenhagen, world leaders will deliberate on agreeing to a historic treaty, on the pattern of the Kyoto Protocol, to tackle climate change. Green activists from India and China said that both the Asian powers must work together to put pressure on developed countries on this pressing issue, while committing themselves to reduce the greenhouse effect.

Sanjay Vashist of the Climate Action Network South Asia (CANSA) said: 'The developed nations have committed up to 16 percent reduction in green house gases by 2020 compared to the 1990 level. This will not halt the rise in temperature above four degree Celsius and have a negative impact on earth.'

He also said that not arresting global warming will lead to rapid melting of glaciers, which in return affect 1.