air quality

US contributes $12m to new UN project to cut substances that accelerate climate change and damage health

London Assembly Member Jenny Jones argues the mayoral race could prove critical to boosting the capital's green economy

Clean Air in London launches election manifesto as TfL announces plan to retrofit more than 1,000 buses to reduce PM10 and NOx

Green group argues High Court ruling that forced government to admit pollution breach did not go far enough

Drivers of all vehicles will be asked to turn off their engines when stationary for more than a minute

Report finds so-called 'greenways' have significantly lower pollution levels than nearby busy roads

Court rules limits on sulphur dioxide and nitrogen oxide output need further review, as Keystone pipeline stand-off continues

New partnership with Environment Agency designed to reduce PM10 at industrial and construction sites

Regulations could see 70GW of coal production shut down, but are expected to save $90bn in healthcare spending by 2016

High Court judge says action on pollution levels must be taken by European Commission, despite admission of breach from Defra