Sharm el-Sheikh | The COP27 climate conference has handed business a daunting to-do list, in a flurry of announcements aimed at outlawing greenwashing, sharpening up climate reporting and harmonising companies’ carbon data.

The United Nations, which runs COP, led the way with a punchy experts’ report prescribing measures that would “put a red line around greenwashing”, according to chairwoman and former Canadian minister Catherine McKenna.