Associated Press: Scientists intend to study whether climate change delays hibernation by Yellowstone National Park grizzly bears. Chuck Schwartz of the U.S. Geological Survey says a slight delay in fall denning by male bears has been detected. Schwartz, who heads an interagency grizzly bear study team, says the delay appears related to warmer autumnal weather and to snowfall arriving later than it did previously. Schwartz told the Great Falls Tribune the USGS will spend $30,000 to study how …