Relaxed Sino-US meeting gets to grips with big issues.
President Obama takes a hardline stance on alleged Chinese car part subsidies.
China is to impose anti-dumping tax on US-made vehicles.
Canadian officials in negotiation with China as US fails to confirm XL Pipeline route.
State Department agrees Canada oil sands pipeline in first stage of approval process
The US has tightened fuel economy standards for cars and light-trucks and set new targets for heavy vehicles.
The US Department of Energy has announced a multi-million dollar grants package for advanced vehicle research.
US oil industry subsidies should be abolished re-directed to clean energy research, says President Obama.
President Obama's efficiency and energy legislation gains mixed support, whilst carbon capture and storage causes heated debate. New wood dissolving methods could help biofuels and Volvo looks set for battery power.