Labor to tighten emissions regime as it draws climate battle-lines

Land-clearing and vehicle pollution measures also expected in opposition's final election offering on climate

Labor is set to unveil a climate policy that will beef up the Morrison government's heavily criticised safeguard mechanism, creating new pollution reduction requirements for the aviation sector, cement, steel and aluminum, mining and gas, direct combustion and the non-electricity energy sectors.

Currently the safeguard mechanism applies to businesses with direct emissions of more than 100 kilotonnes of carbon dioxide-equivalent pollution each year, and Labor's policy is expected to lower that threshold to 25 kilotonnes, which means more sectors and businesses will be covered.