Will COP27 end up as just a lot of hot air?

World leaders are gathering for the COP-27 climate summit in Egypt. But with a rapidly changing climate and a conference marked by key absences, questions are being raised about how much can truly be achieved.

COP26 President Alok Sharma speaks during the 2022 United Nations Climate Change Conference in Egypt (COP 27) Source: AAP / SEDAT SUNA