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Solar project to destroy thousands of Joshua trees in the Mojave Desert
(ca.news.yahoo.com)
This is a most excellent place for technology news and articles.
Kaiser, which is a major hmo here in California, has been putting solar panel parking shade in their lots. The community college in my town has it too. I can't think of any downsides to them other than the installation cost. Everyone likes shade from sun and rain, and free electricity.