The largest drop in ozone hole has been observed amid rising temperatures globally and it has been entered as the smallest ozone hole in the last 37 years. The USA space agency NASA has been monitoring the ozone hole size since 1982 and this time it has been recorded as the lowest hole.
According to NASA, scientists began monitoring it in 1982 due to unusual weather patterns in Antarctica's upper atmosphere as holes in the ozone layer have shrunk to their smallest size. The hole size fluctuates every year and is usually greatest during the coldest months in the southern hemisphere from late September to early October.
New observations from space show that the hole is now less than 3.9 million square miles and it was nearly 6 weeks earlier than the recording area of 6.3 million square miles on September 8. It is half done. Experts believe that during this time of the year the hole is usually around a million square miles in size. According to NASA, the 'main component' in the process of destroying ozone is the polar stratospheric clouds. These relatively rare bodies are high in the stratospheric at altitudes between 49,000-82,000 feet (15,000-25000 m) above the airfoil.
Paul Neumann, chief scientist of Earth Sciences at NASA's Goddard Space Flight Center, said this is an excellent news for ozone in the southern hemisphere, but he cautioned that it is very important to identify what we are seeing this year. This is due to the temperature of the warm stratosphere. This is not an indication that atmospheric ozone is moving towards rapid recovery.
Scientists are hoping that dangerous holes in the Earth's ozone layer, which worsen the negative effects of ultraviolet rays around the world, will spread after the decision to ban ozone-depleting chemicals, some of which have been around since the 1970s. Only remain in the environment.
Image credit: nbcconnecticut