It is good to see that an appalling future awaiting the planet is being recognised (Huge risk if global warming exceeds 1.5C, warns landmark UN report, 8 October) and brought to light by the IPCC. Is there now any hope that the Convention on Biological Diversity can be jolted into comparable action that promotes the possibly more important and urgent demise facing biodiversity and ecosystems on our planet?

Dr Geoff Meaden

Canterbury, Kent

• Important coverage of the IPCC’s landmark report on pages 1, 12 and 13 of the Guardian (8 October). On page 14? A full-page advert offering 25% off on 100,000 seats for easyJet. Time to ditch the fossil-fuel advertising, surely?

Ian Sinclair

London

• Given the special report by the IPCC, is it appropriate to ask that any Brexit deal, with all the likelihood for the UK’s imports and exports to substitute away from the EU and towards more global trade, be subject to an environmental audit?

Adrian Darnell

Durham

• At a time when we are becoming increasingly aware of the dangers of global warming, (Poor planning ‘putting sinking cities at greater risk from sea-level-rises’, 5 October), this government gives permission for companies to go ahead with fracking for shale oil, a fossil fuel. And if you dare to protest peacefully, you risk a harsh jail sentence.

Rae Street

Littleborough, Greater Manchester

• Having just returned from three weeks in France where all plastic bags are compostable – from supermarket use to market traders – I wonder why we, in the UK, are so far behind (Letters, 9 October)?

Judith Wright

Darwen, Lancashire

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