Sir Richard Branson hails 'revolutionary new fuel', as Chinese jet biofuel plant becomes the first in world to secure sustainability certification
Green groups annoyed by reduced ambition of climate policy that leaves some two-thirds of emissions unaccounted for
UN body poised to approve roadmap to a global emissions market by 2020, but is set to limit countries' ability to take their own action
Will Nichols argues that ultimately the industry, NGOs and governments all want the same thing - now it's time for ICAO to deliver
Green groups criticise "foot dragging" as UN body only agrees to have "tools in place" for a market-based measure by 2016
Brussels hopes only charging airlines for emissions in its airspace will advance a global deal this week - but take-off is likely to be delayed
New research finds using existing, high-integrity carbon credits would meet emission goals at around $4 per tonne
Member of European parliament wants US president to live up to climate change rhetoric by helping to advance carbon dea
Airport unveils expansion options to increase number of flights to 740,000 a year at cost of up to £18bn
Mayor of London Boris Johnson set to unveil plans to build homes on Heathrow and enlarge airport provision to east of city