Malcolm Turnbull

Australian Federal Opposition Leader Malcolm Turnbull has unveiled a three-part climate change policy which aims to achieve annual reductions of carbon pollution of equivalent of at least 150 million tonnes by 2020.

Launching the new policy at a Young Liberals convention on Saturday, Mr Turnbull said that the Liberal Party’s plan would include measures to encourage improved energy efficiency in buildings, where he says 23 per cent of greenhouse gases originate.

The plan would also increase investment in new technologies. “We have to invest in industrial scale carbon capture and storage, industrial scale solar, industrial scale geothermal energy,” Mr Turnbull said.

But the main thrust of the policy would be biosequestration of carbon which could deliver ”large gains in agricultural productivity, environmental quality and energy security”.

Leading environmental scientists, including 2007 Australian of the Year Tim Flannery and author of the Gaia hypothesis James Lovelock, also advocate biosequestration in the form of “biochar” or “agrichar“, as the best way of limiting global warming.