Australian Prime Minister Julia Gillard's fragile minority Government continues to sink in the polls.

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.

Is climate change the greatest modern threat?

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