Low temperatures enhance ozone degradation above the Arctic

Extraordinarily cold temperatures in the winter of 2010/2011 caused the most massive destruction of the ozone layer above the Arctic so far: The mechanisms leading to the first ozone hole above the North Pole were studied ...

Astrophysics and extinctions: News about planet-threatening events

Space is a violent place. If a star explodes or black holes collide anywhere in our part of the Milky Way, they'd give off colossal blasts of lethal gamma-rays, X-rays and cosmic rays and it's perfectly reasonable to expect ...

Ozone layer faces record 40 pct loss over Arctic

(AP) -- The protective ozone layer in the Arctic that keeps out the sun's most damaging rays - ultraviolet radiation - has thinned about 40 percent this winter, a record drop, the U.N. weather agency said Tuesday.

Ozone hole reduces atmospheric CO2 uptake in the Southern Ocean

Does ozone have an impact on the ocean's role as a "carbon sink"? Yes, according to researchers from France. Using original simulations, they have demonstrated that the hole in the ozone layer reduces atmospheric carbon uptake ...

Satellites provide new insight into ozone-depleting species

Using data from the satellite-based MIPAS and GOME-2 instruments, scientists have for the first time detected important bromine species in the atmosphere. These new measurements will help scientists to better understand sources ...

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