Clean Air in London resigns from Defra stakeholder group claiming government has "no intention" of complying with EU air quality deadlines
US contributes $12m to new UN project to cut substances that accelerate climate change and damage health
Green group argues High Court ruling that forced government to admit pollution breach did not go far enough
High Court judge says action on pollution levels must be taken by European Commission, despite admission of breach from Defra
Low cost options to reduce particles could save lives, protect crops, and limit global temperature rise, report says
Simon Birkett of Clean Air in London says the government must act on the Environmental Audit Committee's recommendations
London Assembly urges mayor Boris Johnson to cut levels of nitrogen dioxide instead of relying on wider UK policy
Move raises questions about legality of UK's time extension to meet European PM10 limits
Company promises clean up after factory pollution run off kills fish