A clean energy target is not 'unconscionable', Tony Abbott. Wrecking climate policy is | Katharine Murphy

Abbott wants to lead an insurgency to sink Turnbull's climate and energy policy, which has always been a proxy for his leadership. It's pure political expediency

Tony Abbott has been an implacable force against rational climate action in this country for the best part of a decade, and nothing has changed.

Having destroyed one set of energy policies designed to achieve orderly economic transformation and emissions reduction, and created a monumental policy botch-up as a consequence, he's determined to destroy another.