Colin Barnett's bitter obsession with James Price Point must end, the WA Greens said today.

Greens Senator for Western Australia Scott Ludlam said the State Government's plan to acquire the land despite huge local opposition to its industrialisation and Woodside's withdrawal was "vindictive and reckless".

"Premier Barnett, please - it's over. This is a pristine part of the Kimberley's coast; it was never appropriate for industrialisation and it never will be. The Premier is now standing in the way of progress. It's time to move on," said Senator Ludlam.

Reports that Woodside is shelving its planned Browse gas project at James Price Point could signal a big win for the Kimberley and the environment alike, the Greens said today.

"These are very encouraging reports and it is important that Woodside and the WA Government announce the decision, if it has been made," Senator Rachel Siewert said.

The Greens have renewed calls for immediate carbon emission reductions after the release of a study into the possible destruction of the Great Barrier Reef.

The study predicts the world's coral reef systems, including Queensland's Great Barrier Reef, could collapse within 30 years if the effects of global warming are not reversed.

"This study calls for rapid reductions in carbon dioxide levels, indicating that the impact of climate change on coral reefs is just around the corner," said Australian Greens Senator Rachel Siewert.