The clean-energy sector drew in a record-breaking $243bn of investment in 2010, a 30% hike on 2009, according to Bloomberg New Energy Finance. Much of the growth can be attributed to offshore wind, China and distributed PV systems.

Yet that figure is “nowhere close” to what sector needs to compete with fossil fuels in the medium, let alone reverse the planet’s slide towards disastrous climate change, says Tom Curtis, managing director of Deutsche Bank’s US asset management business.

And