Hirunews Logo
Hole+in+Ozone+Layer+Is+Closing+and+Will+Be+%27Healed%27+by+2050%2C+Scientists+Say+
Friday, 01 July 2016 - 8:33
Hole in Ozone Layer Is Closing and Will Be 'Healed' by 2050, Scientists Say
25

Shares
3,044

Views

The massive hole in the ozone layer above Antarctica shows signs of healing after three decades of concerted action by world governments, scientists said Thursday.

The ozone layer is a crucial part of the atmosphere that blocks harmful solar radiation from reaching the Earth’s surface. Without it, scientists believe skin cancer rates in animals and humans would skyrocket.

A massive hole in the ozone above the frozen continent of Antarctica was discovered in 1985, which researchers quickly attributed to the use chlorofluorocarbons (CFCs), a type of chemical used in refrigerators and aerosol sprays.

The gaping hole became a powerful symbol of mankind’s ability to affect the environment, and in 1987, 196 nations signed a pledge to limit the production of CFCs in an agreement known as the Montreal Protocol.

Today, however, researchers claim the hole has shrunk significantly -- 4 million square kilometers (1.5 million square miles) since 2000, when ozone depletion was at peak levels. This contraction is roughly half the size of the contiguous United States.

It appears that these “first fingerprints of healing” of the Antarctic ozone layer, as the scientists describe it, were caused by the Montreal Protocol.

Make a Comment
Make a Comment

DOWNLOAD HIRUNEWS APP ON ANDROID & APPLE
Heavy snow across the globe
Friday, 13 January 2017 - 9:29
Many countries are experiencing heavy snow, foreign media states. The temperature in England, Scotland, North Ireland and Wales has hit minus 10 degrees... Read More
News Image
Hiru News Programme Segments
587 Views
1,025 Views
2,268 Views
1,723 Views
10,069 Views
44,566 Views
Top