How big is the hole in the ozone layer over Australia?
The ozone hole in 2020 The first week of September saw the daily ozone hole area increase rapidly by about 10 million km2, reaching a peak of 24.7 million km2 on 20 September. To put this in perspective, that’s an area a bit over three times the size of Australia.
Why is Australia’s sun so strong?
During summer, the Earth’s orbit brings Australia closer to the sun (as compared to Europe during its summer), resulting in an additional 7% solar UV intensity. Coupled with our clearer atmospheric conditions, this means that Australians are exposed to up to 15% more UV than Europeans.
Is the ozone hole permanent?
Scientists have found evidence that the hole in the ozone layer over Antarctica is finally beginning to heal. If progress continues, it should be closed permanently by 2050.
Is Australian sun stronger?
The elliptical orbit of the Earth places the Southern Hemisphere closer to the sun during its summer months than the Northern Hemisphere during its summer. This means that the summer sun in Australia is 7 to 10 percent stronger than similar latitudes in the Northern Hemisphere.
What country has the worst ozone layer?
The ozone hole over Antarctica is usually more pronounced on the South American side of the frozen continent. Countries that are affected by it the most are Argentina, Chile, South Africa, New Zealand and Australia. The largest ozone hole ever observed in the Antarctic was reported by NASA in September 2000.
What happens if we destroy the ozone layer?
Ozone layer depletion causes increased UV radiation levels at the Earth’s surface, which is damaging to human health. Negative effects include increases in certain types of skin cancers, eye cataracts and immune deficiency disorders.
What will happen if ozone layer disappears MCQS?
This natural sunscreen, known as Earth’s ozone layer, absorbs and blocks the majority of the sun’s UV radiation. Without this barrier in place, all of the radiation would reach Earth, damaging the DNA of plants and animals, like us humans. Without plants, the food chain would collapse.