Qld: could increase to 215.3 million tonnes in 2030

New modelling by Queensland's Environment Department shows the state's carbon pollution could increase by 35 per cent by 2030.

The State Government has released the projections in the face of growing resistance to planned changes to tree-clearing laws.

The Department of Environment and Heritage Protection report showed Queensland's baseline greenhouse gas emissions could increase from 159.2 million tonnes in 2013 to 215.3 million tonnes in 2030, if State and Federal Government policy did not change.

The modelling showed there was a downward trend in emissions between 2005 and 2013, but another spike was expected with transport, mining and agriculture likely to contribute to the rise.

Environment Minister Steven Miles argued the projections show Queensland's tree-clearing regime needed to change.

"Land clearing in Queensland is now releasing more stored carbon into the atmosphere than at any other time in the past eight years," he said.

Indigenous leader Noel Pearson has this week joined farmers and the Liberal National Party (LNP) in speaking out against changes to the Vegetation Management Act.

Mr Miles urged opponents to wait for the detail, which is expected next week.

"I know there are farmers out there losing sleep over this. They shouldn't be," he said.