Convened in Washington, in November 2008, the first G-20 summit was a hasty attempt by top economies to forge common cause against a rapidly escalating financial crisis.
The Obama Administration has approved fuel-economy regulations, beginning with 2012-model-year vehicles. The rules require automakers to improve fleetwide fuel economy and to reduce fleetwide greenhouse-gas emissions by approximately 5% every year up until the 2016 model year