Business Green: Ernst & Young yesterday became the latest consultancy to confirm that venture capital (VC) investment in clean tech companies bounced back towards record levels during the second quarter of the year, reporting that US investment soared 64 per cent year-on-year to $1.5bn (£940m). The report echoes similar figures from analyst firms Cleantech Group and VB/Research, both of which detailed how global levels of clean tech venture capital investment returned to pre-recession levels …