Up to nine per cent of greenhouse gas produced from Utah field found to be escaping into the atmosphere
Governor Andrew Cuomo dubs new programme to improve drafty buildings a "financial and environmental win-win"
Mayor's endorsement could turn climate change into a serious election issue – and it might even embolden Republicans
Elon Musk's solar PV developer also unveils New York expansion plan
District judge throws out New York State's plea for full environmental review, ruling threat of harm is only speculative
Ten new systems installed on city-owned buildings take output up to 648kW
Deutsche Bank cuts ribbon on 122.4 kW PV project on Wall Street skyscraper headquarters
Big Apple could soon receive tidal energy as regulator issues first pilot project license
New York's most famous landmark bags another award after $550m renovation
Judges rule against bid to curb power companies' output by declaring their emissions a "public nuisance"