Australia’s government, which will preside over the next UN climate summit, should gather the world’s 25 biggest greenhouse gasemitting countries and push them to draw up a roadmap to end the era of fossil fuels, former US secretary of state John Kerry has said. Only by “hard-nosed” confrontation with fossil fuel producers, and reducing their consumption in major economies, would the world be able to tackle the climate crisis, he said. Australia’s climate change and energy minister, Chris Bowen, has been given the role of “president of negotiations”, even though…