COP26 and climate change: A journey that began in 1992 with Rio Earth Summit

This year’s United Nations climate summit, or COP26, formally began in Scotland’s Glasgow on Sunday. Here's a look at the journey of the two-week conference which started about 30 years ago in the famous Brazilian city of Rio de Janeiro.

COP26, or this year’s United Nations climate summit, formally began in Scotland’s Glasgow on Sunday. The two-week conference comes at the high point of a journey that started about 30 years ago in the famous Brazilian city of Rio de Janeiro, one of the biggest carbon emitters on the planet.

COP stands for the Conference of the Parties to the UN Framework Convention on Climate Change.