Mayor Ken has invested heavily in making London greener, but his likely rival in next year's election also boasts a strong green track record
Let battle commence. Boris Johnson, the Tory MP that tabloid convention dictates we introduce as gaffe-prone, this month confirmed he is seeking to stand against Mayor Ken in next year's elections....
Supermarket plans to phase out own brand, single-use plastic packaging within five years, as rival Lidl announces ban on black plastic across fruit and veg range
Ministers meeting on climate change, oceans and clean energy kicks off with joint UK-Canada commitment to smart grids and energy storage
National Drought Action Group warns water supplies in north of England remain low after scant rainfall this summer proved 'tough on farmers'
BusinessGreen brings you this week's green economy headlines from around the world