They're calling this the climate election but both sides are failing to rise to the scale of the challenge, writes a former Liberal leader.

El Ninos are becoming more common in the central Pacific but also developing into more extreme events in the ocean's east.

A tiny island rodent, the Bramble Cay melomys, has become the first known demise of a mammal because of human-induced climate change.

The use of carbon credits to meet Australia's Paris climate targets would be "consistent" with the current Kyoto Protocol, the Morrison government said in the strongest signal yet it plans to exploit accounting ambiguities to meet its international commitments.

The "viability of the Darling" is at risk without urgent action, a report by the Australian Academy of Science has found.