Diesel cars by Fiat, Suzuki and Renault among makers emitting up to fifteen times European standard for nitrogen oxide
UN expects ratification surge at Wednesday's event in New York, fuelling hopes the deal will enter force by the end of the year
Green agenda is "in our DNA", Liberal Democrat energy and climate change spokeswoman Lynne Featherstone tells BusinessGreen
Icelandic capital will increase efficiency of public transport and limit city expansion to reach carbon neutral status by 2040
Some 15,000 people responded to the Mayor's air quality consultation, with 79 per cent backing plans to bring forward restrictions on polluting vehicles in the capital
Top polluter joins US and China in formally accepting climate change agreement
Draft document seen by Reuters proposes 30 per cent cut to energy use by 2030 compared with business as usual
Government must take the time needed to release a plan that meets the UK's demanding emissions goals, says climate minister
Labour leader to announce plan to beef up energy efficiency programs, reinstate DECC, and generate 65 per cent of UK power from renewables by 2030
Major savings reported across all sectors before 2020 goal but analysts warn UK could reverse gains after Brexit