House bill will aim to overturn EPA ruling allowing watchdog to regulate greenhouse gas emissions
New bill would cripple EPA if passed, but president secures key Senate ally in fight for clean-energy standards
Protests staged in London during attempt to promote Canadian tar sands as energy source
Woodland leased to private sector under proposals that could revitalise UK biomass
Campaigners voice fears that little-known Proposition 26 could undermine California's efforts to tackle corporate pollution
E15 gains approval for almost two-thirds of US cars despite auto industry opposition
Who said what in the world of green business this week?
Last week BusinessGreen questioned whether the high-profile Fish Fight campaign needed to be more focused – Hugh Fearnley-Whittingstall responds
Green groups remain nervous Obama's pro-business review of regulations could lead to watering down of climate rules