1987 ozone treaty found to delay first ice-free Arctic summer
New Delhi, May 24 (PTI) The Montreal Protocol of 1987, a global deal to protect the ozone layer, has been found to delay the first ice-free Arctic summer by up to 15 years, according to a new research.
The deal, which was the first treaty to be ratified by every United Nations country, regulated nearly 100 man-made chemicals called ozone-depleting substances (ODSs) to preserve the ozone layer, which protects humans and the environment from harmful levels of ultraviolet radiation.
ODSs are compounds developed in the last century for industrial use as refrigerants and propellants.
