Targets for number of low emissions vehicles on the roads would help ensure public money is not being wasted, says transport committee

Aircraft manufacturer testing a range of fuel-efficient technologies in ecoDemonstrator plane on loan from American Airlines

President urged to file UN action to combat perceived threat to US sovereignty and jobs

China set to unveil its own version of government's online 2050 Calculator tool this week

From 'illegal' government policies to solar panels with spinach, BusinessGreen runs down the week's top stories

Researchers at Vanderbilt University say photosynthetic protein in the vegetable could increase the efficiency of solar panels

Government stats say 1,700 have been purchased between January 2011 and June 2012, but industry figures suggest total may top 2,000

Surplus of over 16 billion tonnes of CO2 in first two Kyoto periods puts carbon targets at risk

John Gummer replaces Lord Turner as head of government's climate advisors and backs green growth as "essential" to economic recovery

Clean Development Mechanism "could collapse" without intervention from private sector, officials warn