The Cleantech Group this week released preliminary Q1 2010 results for clean technology venture investments in North America, Europe, China and India, totaling US $1.9 billion across 180 companies. Cleantech venture investment was up 29% from the previous quarter and up 83% from the same period a year ago. The 165 deals recorded in Q1 2010 represents a new record total, edging ahead of the previous high set in Q4 2009.