An invasion of tropical fish previously unseen in New Zealand waters could be an effect of global warming, a marine expert says.

Climate change is threatening to fragment Prime Minister Julia Gillard's leadership.

I remember when the weather was innocent and free.

Is a fully sustainable global energy system possible within reach, or a pipe dream?

Experts blame a combination of a La Nina weather pattern and global warming for the magnitude of the Queensland flood disaster.

Back on January 1 authorities said Queensland was facing a flood of "biblical proportions". Now, almost two weeks later, and it's hard to fathom that the "worst is yet to come" as unprecedented flooding hits the drought ravaged region.

Cutting greenhouse-gas emissions is challenging enough. But what if we can't even measure the pollution we're trying to reduce?

In contrast to the train wreck at Copenhagen a year ago, decent progress was made at Cancun, writes Brian Fallow.

The rift between developed and developing nations on how to extend or replace the Kyoto Protocol has not been healed.

Nick Smith yesterday hailed a "major breakthrough" in climate change talks which ended on Saturday.

The Government has welcomed progress made at the United Nations Conference on Climate Change but the Green Party says it falls short of what is needed to avert the worst effects of global warming.