How can a new runway at Heathrow be good for the planet? | Observer letters

Robin McKie rightly points out that the world is failing dismally to effectively get a grip on the climate crisis.

Richer countries that were part of the Kyoto bloc mostly European nations put in place extensive policies to implement the treaty’s legally binding targets.

The real blame for treaty's eventual demise and relentlessly rising emissions today lies with fossil fuel/extreme libertarian interests and their deep-pocketed lobbying.

Britain should draw closer into the arms of Europe rather than to what is a timebomb waiting to go off in the US .

Catherine Bennett's satirical article almost makes Trump ’s second coming bearable.

Laura Cumming should give us a chance with a cropped Haywain, Sunflowers or Kiss .