A bloc of developing countries as well as aid agencies have protested against the appearance of a new draft agreement, penned by Denmark, at the climate talks in Copenhagen.

Polar bears are important not only for their beauty but for being at the top of the Arctic food chain. But pollutants carried to the High Arctic by winds and ocean currents threaten the bears - another victim of climate change.

Half way through the UN climate summit in Copenhagen and after a week in which no breakthrough was achieved, church leaders have asked negotiators to be more ambitious.

Aid agencies have backed demands by African countries that the future of the Kyoto Protocol should take precedence at the UN’s Copenhagen climate change summit and that talks be focused on this issue and no other until it is resolved.