Do you agree with him?

Speaking at the UN summit on climate change, Sir David Attenborough said global warming is our greatest threat in thousands of years.

No. Another Doomsday scenario. Soon the authorities will impose a carbon tax. PAUL MANN

Yes. But when you have India, China and the US refusing to cut down on emissions it makes no difference. AMANDA A

Yes. We should ban new petrol cars from 2025 and only allow people to buy electric cars. R KING

Yes. The Arctic is melting, the sea is rising, coral reefs are dying, plastic is killing animals. We are killing this planet. JOYCE C

No. CO2 is the life-giving gas of the planet. I’d say the main issue is deforestation. WHATEDOESITMEAN

Yes. Climate change will cause the collapse of civilisation and extinction of our species. WOLFIE