New Scientist: Whales in the Gulf of California are starting to blister in the sun, say researchers who have studied them for three years. They blame the blisters on exposure to harmful ultraviolet radiation as the Earth’s protective stratospheric ozone layer struggles to repair itself. The whales get sunburned when they come up for air, rest on the surface and feed their young. “It’s the first evidence that ultraviolet light can damage their skin, but it’s difficult to say what the impact on their health…