USA

High-profile taxi trial will see four battery-switching stations installed in the Bay Area

California governor fights hard to protect his green legacy, taking on oil executives who aim to annul law via Proposition 23

US will get there first with 1GW plant, but South Africa's plan for a 5GW solar park threaten to put everyone in the shade

EPA claims new fuel efficiency standards will cut carbon and save haulage operators millions of dollars

But mid-term polls suggest wider US climate change policy could be scuppered by Republican victory

Top US negotiator says it could still be possible to deliver a climate deal in Cancun

Shareholder groups accuse oil giants of using company money for "overt political purposes"

UN reports positive progress on climate financing as insults fly between China and US

Energy Secretary expected to announce plan to install solar hot water and solar PV panels at 1600 Pennsylvania Avenue

Responsible Electronics Recycling Act would prevent American companies sending waste abroad for first time