Zali Steggall announces a new climate bill alongside Rebekha Sharkie, Helen Haines and Andrew Wilkie (AAP Image/Mick Tsikas)

Independent MP Zali Steggall's climate change bill, launched this morning in Canberra, seeks to remove the primary impediment to serious climate action in Australia: major party politicians.

The bill advocates a souped-up independent climate authority -- though, crucially, it still leaves government ministers in charge of implementation.

Steggall, who knocked off former prime minister Tony Abbott in his north Sydney seat of Warringah in last year's election, is backed by fellow independents Rebekha Sharkie, Helen Haines and Andrew Wilkie.