GE solar investments top $1.4bn in the last year

Prices of solar panels fell around 47 per cent over 2011

Amyris secures $83.7 million in additional financing

$58.7 million common stock and $25 million in convertible debt

Agreement to develop nitrogen use and water efficient sugar cane

Arcadia Biosciences and United States Sugar Corporation

Aviation biofuels could be competitive by 2020

Made from non-food vegetable oils, like jatropha or camelina, or from the pyrolysis of cellulosic feedstocks, should be the first

China bans airlines from EU emissions reduction scheme

'Scheme violates international agreements'. according to Civil Aviation Administration of China

US aviation and military biofuels

New thinking in finance may clear the runways for take-off

EU confident airlines will comply with emissions rules

Discussions continue with all parties, including the US, China and Russia

Some airlines embrace CO2 trade

All airlines landing or taking off in the 27-nation bloc and three neighboring countries must submit permits to cover the carbon emissions of these flights

US voices ‘objections’ to EU aviation emissions ruling

EU's six-year-old emissions trading system is due to expand to airlines from 1st Jan. 2012

Most carmakers must further improve carbon efficiency by 2015

Almost all manufacturers must reduce emissions to meet 2015 targets under European legislation