Summit targets world water issues

Obama vows climate 'engagement'
US President-elect Barack Obama promises to "engage vigorously" on climate change, ahead of a major UN summit.

Emissions up in developed nations
Emissions of greenhouse gases by industrialised nations rose 2.3% from 2000 to 2006, the UN climate change agency says.

Climate change 'to halt ice age'
The Earth's next ice age may be postponed or stopped entirely by the effects of human-induced climate change, scientists suggest.

Charles warns of 'climate crunch'
Prince Charles warns that the financial crisis should not distract from the long-term problem of climate change, during a visit to Japan.

EU 'holds firm' on climate goals
The EU will keep to its targets to tackle climate change despite worries about slowing economies, the French president says.