UN Secretary-General Antonio Guterres is set on Wednesday to host a climate meeting marred at its outset by the absence of speakers from the world’s top two emitters, China and the United States. Despite increasing extreme weather events and record-shattering global temperatures, greenhouse gas emissions continue to rise and fossil fuel companies reap handsome profits. Guterres has thus billed the “Climate Ambition Summit” as a “no-nonsense” forum where leaders or cabinet ministers will announce