Clean tech in the United States has been on the rise in recent years— even through the recession and other challenges. Increasing wind power, falling solar costs, expanding electric vehicle markets, government stimulus and other investments have built a global clean tech sector that topped $263 billion last year.
In the first quarter of 2012, however, global clean energy investment dropped to its lowest level since 2008. Good news stories are being replaced with headlines about closing factories, bankruptcies, and cancelled projects. Clean tech appears to be at a crucial inflection point.