SEPTEMBER 2006 WWW.SCIAM.COM
How to Power the Economy and Still Fight Global Warming
►Cleaning up Coal
► The Nuclear Option
► Hopes for Hydrogen
► Biofuels and Renewables
► Fusion and Other Dreams
46 I A Climate Repair Manual
BY GARY STIX
Coping with global warming will take innovations in both energy technology and policy.
SCIENTIFIC AMERICAN Volume 295 Number 3
50 I A Plan to Keep Carbon in Check
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The solar Stirling engine is progressively becoming a viable alternative to solar panels for its higher efficiency. Stirling engines might be the best way to harvest the power provided by the sun. This is an easy-to-understand explanation of how Stirling engines work, the different types, and why they are more efficient than steam engines.