USA

Republicans escalate war on Obama's green agenda

Advanced nuclear and biofuel projects granted free access to federal supercomputers

Western states are considering entering the North East Regional Greenhouse Gas Initiative

But green groups are continuing to push for polar bear ruling that could lead to tighter greenhouse gas emission rules

Obama administration promises new era of streamlined permitting to accelerate offshore wind expansion

Vice president Joe Biden announces two initiatives designed to accelerate the rollout of green home makeovers

Third-quarter falls paint a worrying picture of fewer deals and shrinking investment after strong start to the year, but analysts claim volatility is to be expected

Democrats lose control of the House of Representatives, providing Republicans with the power to block new environmental and energy legislation

Regional carbon trading scheme on track to launch in 2012

WHEB Asset Management fund manager argues undervalued clean tech sector represents great investment opportunity