According to the International Herald Tribune Business section, new investment in clean energy industries rose sharply in 2007. Investments in industries such as wind and solar power rose from approximately $86.5 billion in 2006 to $117.2 billion in 2007. According to Michael Liebreich, chief executive of New Energy Finance, a research group, said that. “[a] “wave of liquidity washing through the sector shows no signs of abating,” adding that significant technological strides were taking place in areas like wind, solar, biomass and energy efficiency.
Over the last four years, investment in clean energy has increased from $28.6B in 2004, $54.6B in 2005, $86.5B in 2006, and now $117.2B for 2007.