Two New ETFs Fight Climate Change: One Bridges Shift to Cleaner Energy, One Pushes Cleantech
The PowerShares WilderHill Progressive Energy Portfolio and the PowerShares Cleantech Portfolio offer investors increasing choice for investing in climate change solutions.

Winslow Conservation Index Outperforms the S&P 500 and Russell 2000
Winslow Management Company back-tested five-year performance of 15 companies focused on conservation, an oft-overlooked component of the alternative energy equation.

New Index and Exchange Traded Fund Expose Risks and Potentials in Nanotech
The Innovest Nanotech Index assesses social and environmental risks, while the PowerShares Lux Nanotech Portfolio focuses more on investment opportunities.