mid latitude

NASA's Mars Reconnaissance Orbiter has revealed frozen water hiding just below the surface of mid-latitude Mars.

The spacecraft's observations were obtained from orbit after meteorites excavated fresh craters on the Red Planet.

The year is 2065. Nearly two-thirds of Earth's ozone is gone -- not just over the poles, but everywhere. The infamous ozone hole over Antarctica is a year-round fixture, with a twin over the North Pole.

The ultraviolet (UV) radiation falling on mid-latitude cities is strong enough to cause sunburn in just five minutes.

Such is the world we would have inherited if 193 nations had not agreed to ban ozone-depleting substances, according to atmospheric chemists