Farmers and communities in rural and regional Australia will be appalled that the Coalition is filibustering the Carbon Farming Initiative, the Australian Greens said today.

"The Coalition is once again selling out regional Australians who will benefit hugely from the Carbon Farming Initiative when it eventually passes," Australian Greens Deputy Leader, Senator Christine Milne, said.

"The shameful waste of everybody's time and resources in this pointless filibuster comes on top of the Coalition's confusion over coal seam gas, its support for managed investment schemes and its refusal to establish a regulatory authority for soil carbon.

The Australian Greens say the Murray Darling Basin Authority's second delay in eight days to the draft report means there's less time for the parliament and public to assess its contents.

The Greens have welcomed the SA government's environmental water requirements study, which has been peer-reviewed by the Goyder Institute, to demonstrate what is needed to keep the Murray mouth open and ensure a healthy river system.

South Australia will benefit from the historic climate action package which finally puts a price on carbon to cut pollution, the Australian Greens said today.