The NSW government is planning to strengthen assessment requirements for CCS projects, waste-to-energy projects, groundwater treatment activities, and large storage batteries.
The Western Australian government has faced questions in Parliament over its decision to approve Woodside's greenhouse gas abatement program for its proposed Pluto LNG expansion.
South32 says uncertainty over the approval of a key metallurgical coal mine expansion is behind a $997 million write-down of its coal business, and the company has laid out its reasons for seeking a court order that consent was invalidly refused.
Approvals relating to Woodside's Pluto project and the Waitsia 2 gas development are candidates for a new climate duty of care test case under consideration by the WA Conservation Council.
Alinta says a proposed expansion of its Port Hedland gas plant will significantly cut its carbon emissions, and has pledged to use offsets as a back-up if its emissions end up being higher.
Woodside will invest heavily in Western Australian vegetation projects to partially offset emissions from its Pluto LNG plant, but has opted for cheap international carbon units to meet a related offset obligation.