Clamour for climate action

Protests provided a backdrop to the UN climate change summit in New York. World leaders were challenged by schoolgirl Greta Thunberg, but the scale of the policy shifts necessary is not yet grasped. Here’s the best of this week’s opinion and analysis.

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Reducing emissions needs to be put at the centre of policymaking

UN report reveals risks of rising sea levels

Small floods will hit an expanding share of houses every couple of years

How is the world’s biggest emitter tackling global warming?

But a sizeable chunk of voters is likely to be alienated by environmental radicalism

Since 1970, the avian population in North America has dropped by almost 30 per cent

More from this Series

We will not tackle climate change if money keeps going to carbon emitters

Extending the operating times of plants can support the shift to a low-carbon economy

Letter from Wouter Veening, President, Institute for Environmental Security, The Hague, Netherlands

Letter from Dr John Law, London, UK