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California is entering its fifth consecutive year of drought. Is that changing people's attitude to green energy and climate change there? The ÃÛÑ¿´«Ã½'s Paul Moss reports. We speak to author Jacquie McNish, co-author of Losing the Signal: The Untold Story Behind the Extraordinary Rise and Spectacular Fall of Blackberry. What are the business lessons in Blackberry's story? (Photo: Dry cracked earth near an almond orchard in Firebaugh, California, Credit: Justin Sullivan/Getty Images)