Grand Junction Sentinel: In the 20 years that Ken Murphy has worked in the rafting business, he has watched the commercial season start increasingly early, more people get drawn to the river by ever-warmer temperatures, and safety concerns lessen as flows have decreased. Short-term, Murphy said, climate change has been beneficial to Glenwood’s rafting industry. “In the longer term, would I want my kids to get into the river outfitting business? No, because eventually we’re not going to have the water, …