Almost 30 years after the Montreal Protocol, the ozone hole over Antarctica is becoming smaller. Leading scientists claim this hole could be gone by 2050.Source: CNN
Scientists from the University of Leeds were part of an international team led by Professor Susan Solomon of the Massachusetts Institute of Technology to confirm the first signs of healing of the ozone layer, which shields life on Earth from the sun’s harmful ultraviolet rays.
Recovery of the hole has varied from year to year, due in part to the effects of volcanic eruptions.
But accounting for the effects of these eruptions allowed the team to show that the ozone hole is healing, and they see no reason why the ozone hole should not close permanently by the middle of this century.