Ozone Layer Depletion: one of the root causes of green house effectby shamim ahmed mridha | 28-09-2018 02:22 |
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 Ozone layer was first discovered by two French physicist charles Fabry & Henri Buisson. The ozone layer is the layer of earth's atmosphere that has relatively high amount of ozone located at the lower part of stratosphere. Ozone is the unstable form of oxygen & created by natural process such as ultraviolet radiation in the upper atmosphere & lightening. It takes a very important role & protects us from the harmful ultraviolet light UV-B. CFC gas takes the main responsibility for ozone layer depletion. It creates hole in ozone layer. That's why UV-B can enter into the world which too harmful for human & plants and other molecular species as well. It creates skin cancer, eye problems, harmful diseases etc. Even it is one of the main reason of rising temperature & Global Warming. Due to the technological advancement, the amount of carbon-dioxide & other greenhouse gasses are also increasing. It traps huge amount of energy as well & increases the temperature of the earth. Marine environment uses huge amount of carbon-dioxide & make a balance of carbon cycle. Ultraviolet radiation hampers the process of plant's photosynthesis & it decreases carbon-dioxide absorbing capacity of marine plankton & plant species. That's why the amount of carbon increases in the atmosphere & creates Global warming. It also hampers in food chain as well as the ecology of marine environment. Montreal protocol was established in 1987 which aimed to protect ozone layer by decreasing the uses of CFC gasses. Bangladesh signed the Montreal protocol in 1990 & started reducing the uses of CFC. By the report of 2013, The consumption of ozone depleting substance in Bangladesh was 64.9 ODP tons & it is decreasing day by day, so it is a very positive news for us. A group of student of Bangladesh University of Professionals (BUP) visited Bangladesh Meteorological Department recently & took practical experiences about climate & weather pattern. It proves that, students have clean interest about climate change, global warming, ozone layer depletion & other environmental issues as well in Bangladesh. So, i think, we can hope for a better planet, can't we?
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