California
Germany and California bolster climate cooperation as US backs off G7 statement
Two governments issue joint statement of intent to boost climate cooperation, as US refuses to join rest of G7 in climate action communique
In defiance of Trump, California signs green technology pact with China
US states continue to step up international climate efforts following President Trump's decision to pull US out of Paris Agreement
The business bulwark behind California's climate progress
The unlikely story of how businesses backed the state's emissions reduction policies. Will they follow the same playbook for US and global policies?
Walmart inks deal for 40MWh of battery storage at selected California stores
US retail giant partners with clean tech firm Advanced Microgrid Solutions to deploy Hybrid Electric Building technology in 27 supermarkets
Californian sunshine powers negative electricity prices
Utility-scale solar generation in the Golden State accounted for almost 40 per cent of net grid power on 11 March, pushing wholesale prices into the negative
Scotland and California pledge closer ties on climate change and wind power
Pledge to share knowledge on developing offshore wind technology comes as Scotland breaks new renewable power records in March
Record-breaking battery projects boost Southern California grid
Tesla, AES Corp, Powin Energy and AltaGas all flick battery storage plants live in the Golden State
Silicon Valley's sustainability problem
Twenty-one tech giants, from Adobe to WD, are identified as leaders, yet trouble brews among their peers
Could Trump's victory spark a carbon pricing boom?
Rollback of federal climate policies may prompt state action on carbon pricing across the US
Four bold collaborations tackling California's drought
Non-profits with corporates such as Anheuser-Busch, Coca-Cola, General Mills are throwing their weight behind big water projects in the Golden State
US government inks largest ever renewables purchase
Desert solar array in Arizona will be used to provide power to 14 US Navy bases in California
How California is channelling carbon market revenues into green vehicles, clean air, and methane reductions
Last-minute deal breaks political stalemate to deliver $900m to programmes to cut greenhouse gases
How a solar-powered sculpture could deliver fresh water to millions of Californians
Gleaming pipe sculpture could use solar power to desalinate up to 4.5 billion litres of drinking water every year
California poised to extend climate targets
New goal would require US state to cut emissions 40 per cent below 1990 levels by 2030
Arnold Schwarzenegger says climate campaigns need to focus on 'right now' not 2050
People don't relate to future threats from climate change but seeing images of people dying now from air pollution drives them to act, says former governor of California
Is carbon trading poised for take-off?
Carbon pricing is set to raise $22bn this year, as Vietnam adopts its own carbon market and China tightens cap-and-trade regulations
Transport Secretary Patrick McLoughlin calls for EU probe into Volkswagen emissions test rigging
VW says 11 million vehicles globally fitted with defeat device, which helps cars pass emissions tests
California drops plan to slash fuel use by 50 per cent after oil industry backlash
Senate leader says advocates of SB350 could not compete with 'bottomless war chest' of fossil fuel interests
California passes bill forcing biggest pension funds to divest from coal
Bill targets state public employees' and teachers' pension plans
California's drought has a silver lining
Record dry spell can attract investors into sustainability, argues Francis Malone
Arnold Schwarzenegger: climate change is not science fiction
Terminator star calls global warming a 'battle in the real world' that's bigger than any movie, at the first summit of conscience for the climate in Paris
California sets new goal to slash greenhouse gases 40 per cent by 2030
Governor Jerry Brown signs executive order, as Secretary of State John Kerry says climate change will become a strategic priority for US government
California moves climate action up a gear
State unveils raft of new policies designed to drive clean tech investment, including legislative push for state funds to divest from coal
Apple inks $850m deal for First Solar project
The iPhone maker's latest green energy investment for solar farm in California makes it first $700bn US company
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