Reuters: President Barack Obama on Saturday defended his decision to allow Royal Dutch Shell to drill for oil in the Arctic Ocean under what he said were rigorous standards, fending off criticism by environmental groups.
His message comes on the eve of a three-day tour of Alaska aimed at drawing attention to powerful images of melting glaciers and eroding coastlines as a "wakeup call" to Americans in the Lower 48 states about the urgent need to address climate change.
The trip is part of a broad campaign...