Australia news live: Qantas plane carrying Liberal senator to climate policy meeting forced to turn back after cabin ‘filled with smoke’

SA's Leah Blyth says Australia can't afford' net zero target. Follow today's news live

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Removing CO₂ from atmosphere vital to avoid catastrophic tipping points, leading scientist says

Removing carbon from the atmosphere will be necessary to avoid catastrophic tipping points, one of the world's leading scientists has warned, as even in the best-case scenario the world will heat by about 1.7C.