A United Nations scientific report says Earth’s protective ozone layer is slowly but noticeably healing. Scientists say the hole over Antarctica should be fully mended in about 43 years.
. Our success in phasing out ozone-eating chemicals shows us what can and must be done – as a matter of urgency — to transition away from fossil fuels, reduce greenhouse gases and so limit temperature increase,” World Meteorological Organization Secretary-General Prof. Petteri Taalas said in a statement.
The two chief chemicals that munch away at ozone are in lower levels in the atmosphere, said Newman, chief Earth scientist at NASA’s Goddard Space Flight Center. Chlorine levels are down 11.5% since they peaked in 1993 and bromine, which is more efficient at eating ozone but is at lower levels in the air, dropped 14.5% since its 1999 peak, the report said.
Decades ago, people could go into a store and buy a can of refrigerants that eat away at the ozone, punch a hole in it and pollute the atmosphere, Fahey said. Now, not only are the substances banned but they are no longer much in people’s homes or cars, replaced by cleaner chemicals. . Rogue emissions were spotted in part of China but now have gone back down to where they are expected, Newman said.
Deutschland Neuesten Nachrichten, Deutschland Schlagzeilen
Similar News:Sie können auch ähnliche Nachrichten wie diese lesen, die wir aus anderen Nachrichtenquellen gesammelt haben.
UN says ozone layer slowly healing, hole to mend by 2066A United Nations scientific report says Earth's protective ozone layer is slowly but noticeably healing
Weiterlesen »
The United States celebrates winning inaugural United Cup | CNNThe United States celebrated winning the inaugural United Cup Sunday with a comprehensive victory over Italy in the final in Sydney, Australia.
Weiterlesen »
Leaders of Colombia, Venezuela meet as 'sister nations' improve tiesColombia's Gustavo Petro is received by Venezuela's Nicolas Maduro at presidential palace for a meeting whose purpose Bogota describes as 'continuing to work for a shared agenda' between the South American neighbours.
Weiterlesen »
Pro-Con: Should pornography be illegal in the United States?Opinion: Pro-Con: Should pornography be illegal in the United States?
Weiterlesen »
United States, South Korea to partner on advanced air mobility developmentThe U.S. Federal Aviation Administration (FAA) said on Saturday it had agreed to partner with the Korea Office of Civil Aviation (KOCA) future Advanced Air Mobility aircraft development and operations.
Weiterlesen »