Global climate change might seem to call for global action, but there are efforts going on in places you wouldn't necessarily look, with countless examples in cities across Minnesota.
Did Exxon-Mobil lie to the public and investors about the threat of climate change? Several experts explore whether this is similar to what the tobacco companies said about the link between smoking and cancer. You'll also hear some climate change activists discuss their strategies. From the Climate One series at the Commonwealth Club of California.
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Researchers say climate change has made weather more pleasant in many parts of the U.S. Winters have been milder, and summers haven't become much hotter. But that's likely to change in coming years.
New Orleans and Philadelphia are two cities that face very similar challenges of flooding from rising tides. But they've chosen to pay for the solutions in very different ways.