In an announcement timed to coincide with the COP21 UN climate summit, which starts next week, the Anglo-Dutch multinational also said it will only buy renewable power from the grid by 2020 and cut coal out of its energy mix by the same date.

Unilever set itself the goal of being “carbon positive” by the end of the next decade, joining a growing list of global corporations to make such a pledge – but going further than many by putting a date to it.

“With