The Climate Change Authority report concludes that additional emissions under the coalition plan would see Australia miss its 2030 emissions target and delay the overall transition to clean energy.
"The Climate Change Authority's slap-down of the Coalition's nuclear proposal is welcome, but it is yet another distraction from the big climate issues," said Rod Campbell, Research Director at The Australia Institute.
"We're talking about nuclear yet again, not about Australia's uninsurable regions, massive fossil fuel subsidies and dodgy offset schemes.
"It suits both major parties to have a fake fight about nuclear and avoid these real problems in Australia's climate policy, on which Labor and Liberals largely agree.
"It would be more useful if the CCA focused on Australia's subsidised fossil fuel expansion and rising domestic emissions.
"Nuclear is a distraction that avoids scrutiny of Australia's real climate problems.