Time left to recovery of the ozone hole
Around the planet
It’s called a hole but it doesn’t really look like a hole. But there’s an area in Antarctica where the ozone layer in the atmosphere is severely depleted.
Life flourished in our planet for millions of years because we had an ozone layer that protected us from the rays of the sun.
While the warmth of the sun is necessary for our survival, its ultraviolet radiation is harmful to humans, plants, animals and our planet.
Just imagine, even with our ozone layer in place, if you stay in the sun too long your skin will get burned. What more if we had no ozone layer? Our whole planet will slowly fry.
Ozone is a form of naturally occurring gas – and 90% of our planet’s ozone is in the stratosphere. It is constantly being renewed and destroyed.
The sun renews the ozone and natural chemicals in our atmosphere destroy it. It is a complex natural cycle.
In 1985, scientists discovered significant ozone layer depletion over Antarctica. The whole world was shocked at this news. Here are some facts about the Ozone Layer Depletion:
As early as 1978, the US banned the use of CFC propellants in spray cans. When the Antarctic hole was discovered in 1985, scientists more strongly tied CFC and HCFC as the cause of the depletion.
In a great show of solidarity, the Montreal Protocol was signed by several countries in 1987 promising to limit the use of CFCs, HCFCs and other substances that are harmful to the ozone layer.
Nearly 100 harmful substances were phased out and production and consumption of these substances went down by 98%. The treaty not only saved the ozone layer, it has delayed climate change.
The 1985 discovery of the Antarctic hole was a wake-up call for all of us. It clearly shows that our
actions can and will affect our planet. There are many small ways in which you can help.
Humanity once responded to the ozone layer crisis. We don’t need another crisis to take action; we can do our share now and prevent a crisis from happening again.
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