New WA greenhouse gas guidelines labelled too weak by conservationists, too stringent by mining, energy companies

Chevron's Gorgon facility has been the largest emitting project on the national safeguard register over the six years of reporting. (Chevron)

Western Australia's new greenhouse gas guidelines governing emissions intensive projects across the state have drawn a lukewarm response from conservation groups and the state's mining and energy lobby.

The guidelines will require high-emitting developments to bring their carbon emissions down to net zero in a straight line from 2030 to 2050.