By OLIVIER DOULIERY / AFP Climate deniers looking to block action and “greenwashing” companies could have free rein on Twitter after Elon Musk’s takeover, analysts warned as leaders pursued anti-warming efforts at the COP27 summit. Climate deniers looking to block action and “greenwashing” companies could have free rein on Twitter after Elon Musk’s takeover, analysts warned as leaders pursued anti-warming efforts at the COP27 summit. The Tesla billionaire and self-declared free-speech absolutist has fired thousands of staff -– with sustainability executives Sean Boyle and Casey Junod among tho…