European Commission estimates energy-intensive sector will have accumulated allowances worth €7-12bn by the end of 2012
New security measures for emissions trading scheme proposed to avoid repeat of cyber fraud
Levy to curb excessive profits among several tax options being considered by UN, along with banning credits from new HFC-23 facilities
Leading offsetting firm says government decision to end quality mark for carbon offsets will damage consumer confidence
Merrill Lynch chief says REDD scheme investors face risks equivalent to "emerging markets squared"
Analysts say high use of UN offsets in EU emissions trading scheme suggests industrial gas credits are being ditched before 2013 cut off point
Plans to invest directly in poorer nations in return for credits would complement UN's market mechanism, envoy says
Wildlife Works nets 1.45 million offsets for safeguarding forest in the Kasigau corridor
Who said what in the world of green business this week?