"As world leaders met at the COP26 summit to debate how to tackle climate change, misleading claims and falsehoods about the climate spiralled on social media.

Scientists say climate change denial is now more likely to focus on the causes and effects of warming, or how to tackle it, than to outright deny it exists.

We've looked at some of the most viral claims of the past year, and what the evidence really says."

Rachel Schraer and Kayleen Devlin report for BBC Reality Check November 17, 2021. [2]