San Diego Union Tribune: Learning from their failed 2005 bid to house California’s stem cell institute in San Diego County, local business and academic leaders are mounting an early campaign to become the state’s hub for research on global warming. The county’s clean-technology trade group and others are lobbying powerful lawmakers – including state Sen. Alex Padilla, D-Los Angeles – for that designation. The effort includes one of the region’s top scientists, San Diego Mayor Jerry Sanders and representatives …