Post-Gazette: Rather than warn of dire future consequences, President Barack Obama last week declared climate change an "immediate risk' to the country's security. His remarks, made in a commencement address at the U.S. Coast Guard Academy, are a wake-up call to a complacent nation.
Mr. Obama has taken credible steps to address global warming. After his cap-and-trade proposal failed in Congress, he used the Environmental Protection Agency's authority under the Clean Air Act to push new regulations on pollutants,...