State of California provides $4m in funding to support rollout of 2,750 recharge points

New rules aim to block unsolicited distribution of paper-profligate directories

Plug-in hybrid promises to travel 20 miles on electricity alone

As Chinese exports tumble, what alternatives do green tech companies have?

Discovery sparks hopes of mass-marketing a highly efficient solar cell

Financing deal allows customers to install a fuel cell system for no initial cost

Campaigners voice fears that little-known Proposition 26 could undermine California's efforts to tackle corporate pollution

State accepts request from Federal government to hold off on new clean air standards

US Geological Survey warns super-storm capable of exacting more than $300bn of damage is a "plausible scenario"

Updating of average weather data reveals reality of changing climate