California

California and 17 other states are challenging EPA move to relax vehicle emissions standards

Embedding sustainability from grape to glass has been a long road for the California wine sector - but now the industry is ready to shout about its efforts

Could California join the global push to set a legally-binding phase out date for internal combustion engine cars?

State brings in new federal rules two years ahead of schedule in a move that could see California's businesses and consumers save $1bn every year on energy bills

As the second week of international climate negotiations gets started in Bonn, pressure mounts on diplomats to deliver meaningful progress

State lawmakers pass legislative package to extend carbon trading scheme to 2030 and take action on local air quality

Michael Bloomberg launches 'America's Pledge' on climate change as California Governor Jerry Brown sets out plan to strengthen California's carbon trading rules and cut air pollution

Two governments issue joint statement of intent to boost climate cooperation, as US refuses to join rest of G7 in climate action communique

US states continue to step up international climate efforts following President Trump's decision to pull US out of Paris Agreement

The unlikely story of how businesses backed the state's emissions reduction policies. Will they follow the same playbook for US and global policies?