In 2015, scientists at NASA predicted that the Ozone Hole would be half closed by 2020. That hasn’t happened. Other ...

That byproduct has at last been identified, 40 years after it was first observed, but whether it’s dangerous remains an open ...

Paul Newman, the leader of NASA‘s ozone research team and chief scientist for earth sciences at NASA’s Goddard Space Flight Center, says that the chlorine atom within a CFC molecule does the most ...

That means switching back to chlorine would probably require expensive efforts to remove those organics from the water. Other ...

The ozone layer sits toward the bottom of the stratosphere, roughly 20 to 40 kilometers (66,000 and 131,000 feet) above the ...

Efforts to repair the ozone layer may have prevented 0.5 C of warming by 2100, according to the UN report: “The atmospheric abundances of both total tropospheric chlorine and total tropospheric ...

The researchers published their findings in a paper in Geophysical Research Letters, stating that aluminum oxides trigger destructive reactions between ozone and chlorine. Furthermore, aluminum ...

At high altitudes, where conditions are different from the Earth’s surface, those chlorine compounds were destroying ozone, the gas that absorbs and scatters UV light from the sun. Because CFCs are so ...

Chemicals called chlorofluorocarbons, which are made up of chlorine, fluorine and carbon atoms, are the biggest culprit in ozone depletion. More commonly known as CFCs, they can be found in ...

Chlorine and bromine chemicals high in the atmosphere eat at Earth’s protective ozone layer. Cold weather creates clouds that releases the chemicals, Newman said. The more cold, the more clouds ...