US investor group names and shames those firms consistently obstructing climate change related shareholder resolutions
Environment secretary predicts microscopic technologies could play key role in boosting food supplies and tackling climate change
Auto giant earmarks $30m investment for Chevy Volt power pack plant
Bob Watson to argue research is needed to determine whether GM crops can help feed growing population in world affected by climate change
Chief executives sacrifice private jets to travel to committee on hybrid cars
GM wants to exhaust bailout possibilities before it accepts a takeover
Falling fuel prices and fierce competition lead to factory closure
GM debuts plug in hybrid Volt, as Tesla outlines plans for new factory
GM announces review of much-criticised gas guzzler as part of new strategy designed to meet shift in demand towards low-emission vehicles