Fiona Harvey

UK energy secretary played key role in $300bn deal for developing countries, branded a ‘betrayal' by critics

The Lamborghini showroom and a Tiffany branch sit at either end of Baku's long boulevards beside the Caspian Sea.

Government puts forward £1.98bn in funding over three years, an increase of about 40% on last pledge

The Baku Cop29 talks were marked by division and self-interest, with rancorous meddling right until the end, says Fiona Harvey, a Guardian environment editor

An area nearly a third larger than India turned permanently arid in past three decades, research shows

The extent of the world's land affected by excess salt is set to increase rapidly with potentially devastating impacts on food production, research has found.

The UN warns that rising soil salinity driven by climate change and unsustainable farming practices threatens global food production, putting millions at risk.

President formally files new plans under Paris agreement and hails ‘boldest climate agenda in American history’

New research comes as dozens of small potential fields have received some form of license from the government

Potential new North Sea oil and gas fields with early stage licences from the UK would emit as much carbon dioxide as British households produce in three decades.