Today, the cleantech sector – renewables, green transportation, green buildings, electric motors, energy efficiency - is finally growing fast enough to pose a serious, market-disrupting competitor to traditional, status-quo industries, such as coal and oil. The dirty energy lobby doesn’t like it one bit. It has launched a concerted campaign of attacks through heavy spending an array of front groups to undercut the popularity and viability of solar, wind and energy efficiency as foundational parts of our energy future.