0z0ne layer depleti0n

The ozone layer acts like a giant sunshade, protecting plants and animals from much of the sun's harmful ultraviolet radiation.

Ozone (O3) forms a layer in the stratosphere, 15-40 km above earth surface. If the ozone in the atmosphere from ground level to a height of 60 km could be assembled at the earth's surface, it would comprise a layer of gas only about 3 mm thick.

The maps shows UV intensity at noon calculated from sun angle and satelitte measurements of the ozone layer. The model assumes clear sky conditions at sea level and average sun reflection. With increased altitude and reflection- for instance snow conditions in mountain areas- the UV dose could be considerably higher.

UV radiation will have an impact on planktonand other tiny organisms at the base of the marine food web.The provide the original food source for all other living organisms in the oceans.