The Ozone Layer Continues to be Good
Bogor, December 19, 2014
The condition of the ozone layer which protects the earth from ultraviolet rays are predicted to be good in the next few decades. This was revealed in a report prepared by 300 scientists, published by the United Nations Environment Programme (UNEP) and the World Meteorological Organization (WMO), Wednesday (10/9).
According to the researchers, this success is the result of collective action in various countries in the world that signed and ratified the Montreal Protocol. Since 1987, these countries have worked together to create policies to reduce chemicals harmful to the ozone.
Without the Montreal Protocol and its supporting policies, the concentration of ozone-depleting chemicals in the atmosphere will rise 10-fold by 2050. "The challenge we face is still very large. Success Montreal Protocol should trigger other actions that not only protect the ozone layer, but also protect the climate "said UNEP Executive Director, Achim Steiner.
One challenge is the emergence of new chemicals that are safe for the ozone but it is harmful to the climate. Materials CFCs (chlorofluorocarbons) and halons - which was used for a wide range of products such as refrigerators, air conditioning, spray cans and fire extinguishers - replaced with material HFC (hydrofluorocarbon) that are harmful to the climate.
HFCs currently contributes about 0.5 gigatonnes of CO2 equivalent emissions per year. These emissions continue to grow at a rate of 7% per year. If not controlled, these materials will aggravate climate crisis in the decades to come.
"Community of the Montreal Protocol, with their achievements, be evidence that global cooperation and concerted action is the key to achieve a shared goal to protect the world," added Steiner.
Source: hijauku.com (120914)