Pollution

Fourteen people arrested during dawn raids as part of investigation into a suspected landfill tax fraud

Volkswagen faces $18bn in fines after US regulators found thousands of cars giving false data on emissions

New standards seek to slash emissions from the capital's construction sites by half by 2020

UK capital wrestles dubious honour of being Europe's most gridlocked city from Brussels

Swan-like water pollution monitors glide across lakes in Singapore tracking water pollution levels

New research concludes at least 38 per cent of the population is exposed to unhealthy air on an average day

Environmental campaign group says tournament provides opportunity to clean the nation's air and water

Court defies European Commission, ruling people have a right to know if their government is breaking rules on hazardous waste

Pollution restrictions would prove almost impossible to meet, while new runway would restrict economic growth elsewhere, green groups warn

Sustainable transport campaigners call for five per cent of transport budget to be ring-fenced for walking and cycling