BusinessGreen.com Most Read - November 27

Flushed with success: New Zealand makes biofuel from sewage
Solray Energy stakes claim to world's largest algae refinery, which converts toilet wastewater to biofuel

Insurance giant warns climate "tipping points" in sight
As insurance industry warns UK floods will cost £100m, Allianz says sector will have to adapt coverage models to cope with soaring climate risks

Hedegaard in running for EU climate commissioner role
Danish government insists cabinet reshuffle will not disrupt Copenhagen Summit

Scientists crack sustainable plastics puzzle
Team from South Korea find way to make conventional plastics from organic products rather than fossil fuels

Climate scientist at centre of leaked email row dismisses conspiracy claims
Phil Jones of the University of East Anglia denies emails provide evidence of collusion by climatologists to fix data

Norway debuts world's first osmotic power plant
Statkraft debuts osmosis-based power plant, talks up prospects of 25MW facility

Sanyo to sell homes powered by solar panels and Li-ion batteries
Japanese homebuyers eligible for subsidies for electronics giant's eco-friendly houses

Conservatives to unveil green policy push
Osborne to announce plans for 10 per cent Whitehall emission target, new low-carbon investment bank, green ISAs and recycling incentive scheme

India approves $922m for solar plan in bid to boost PV capacity
First phase of ambitious project aims to increase solar production from 6MW to 200MW by 2012

Conservatives pledge to stop UK fossil-fuel subsidies
Scale of support to carbon-intensive industries is "scandalous", say Tories