Protesters on 'Reclaim Power' Day Set to Face Zero-Tolerance Approach by Police Chris Green and Ben Ferguson

One thousand of them have already been arrested, and tomorrow will bring protesters' largest, angriest demonstration in the Danish capital – right outside the building where the crucial negotiations are underway.

Mass arrests are likely as a predicted 5,000 demonstrators descend on the Bella Centre on the same day as many world leaders are scheduled to arrive.

High-Profile Activist's Arrest Fuels Fears of Police Crackdown in Copenhagen Climate Justice Action Spokesman to Face Charges, as Danish Police Prepare for Mass Protests at Copenhagen's Bella CentreBibi van der Zee

A high-profile climate activist was arrested ahead of tomorrow's major protests planned outside the Copenhagen climate summit, fuelling anxiety about how the Danish authorities are policing demonstrations.

Leaked Agreement Rocks Copenhagen Emma Alberici, Australian Broadcasting Company

The Copenhagen climate talks have been rocked by the leak of a draft final agreement which weakens the role of the United Nations in climate change negotiations and abandons the Kyoto Protocol.

The "Danish text" draft agreement, published by the UK's Guardian newspaper, has been described as a dangerous document for developing countries.