Greta Thunberg

Lexicographers have detected an uptick in words linked to environmental issues

Citigroup analysts predict the cost of carbon offsetting commercial flights could exceed $6bn a year by 2025

The best soundbites from politicians, activists and business leaders in New York

Despite some 'bright spots' and encouraging progress from business groups, leaders at yesterday's summit 'did not deliver' on expectations, say campaigners

Greta Thunberg's stinging challenge to world leaders is not just a rhetorical device, it is a genuine question that needs answering

Swedish teenage activist delivers angry and emotional speech to world leaders at UN Climate Action Summit, as emissions pledges start to stack up

All the key corporate and national announcements from a hugely eventful day for the global green economy

For some businesses, the reputation boost among employees and consumers outweighs the financial impact of striking for the climate

Sportswear firm is the latest corporate to pledge to close their offices and stores for 24 hours in support of the climate strike

Campaign group says action to ground flights at airport is proportionate to climate threat, as Heathrow says activists will face 'full force of the law'