Global warming effect on water; Water details part-5
Global warming effect on water
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Global warming effect on water
The effects of global warming on freshwater
Sea level rise
Global warming is the world’s atmosphere the temperature, which is rising day by day for various reasons. As the temperature of the atmosphere increases, so will the temperature of the water. About 100 years ago the temperature of the atmosphere was about 1 ° Celsius lower.
You might think that in 100 years the average temperature of the earth’s atmosphere has increased by only 1 ° Celsius, that’s all! But in fact the matter is extremely important. This is because as soon as the temperature rises a little, the ice stored in various places, including the polar regions, begins to melt.
Where will the ice water go? Eventually this water will fall into the sea. This will increase the sea level. As a result, all the low-lying countries of the world will be submerged. Bangladesh is a country in such a low area!
Global warming effect on water
Salinity
As the sea level rises, the saline water of the sea will mix with the water of rivers, canals, ponds, ground water and lakes. In a word, all water sources will become saline.
What are the problems if all sources of water are saline? First, freshwater aquatic plants and animals will face a catastrophic catastrophe and will eventually become extinct. This is because, as the water temperature rises, the dissolved oxygen in the water decreases, just as the salinity increases, so does the dissolved oxygen, so that aquatic animals can no longer survive.
A large portion of aquatic plants cannot grow or thrive in brackish water, which threatens aquatic biodiversity.
Global warming effect on water
Rainfall
As global warming increases, the amount and type of rainfall may change dramatically. Computer modeling in this regard suggests that the amount of rainfall will increase in some areas, while in some areas, especially in temperate areas, the amount of rainfall will decrease.
Droughts can occur when rainfall is reduced, and even large areas can turn into deserts. Changing the amount and type of rainfall will change the amount and flow of water in rivers, canals and beels, which in many cases can lead to catastrophic disasters.
From computer modeling it can also be inferred that the amount of rainfall in an area will increase a lot in winter, which can lead to untimely floods.
Global warming effect on water
Impact of global warming in Bangladesh
A big proof of global warming in Bangladesh is that now it is much hotter in summer, sometimes even the atmospheric temperature rises to 48 ° Celsius which has never happened before. It is very clear from the temperature data that the temperature is higher than before in both summer and winter.
In other words, the effects of global warming have clearly begun to be felt in Bangladesh. What will be the effect of fresh water in Bangladesh? You already know that global warming will cause melting of the ice stored in the earth and rising sea level.
(Global warming effect on water )
Its impact will be much more severe in Bangladesh, due to which the water level in the Bay of Bengal will rise and about one third of our country will go under water. Rivers, canals and groundwater will become saline as saline water from the sea enters the mainland.
As a result, there will be no more fresh water in the country. You may know that in many districts of south-western Bangladesh, including Satkhira, saline water is brought to the mainland by cutting canals for shrimp farming. Due to this, the ground water of those areas and other sources of fresh water have also become saline.
( Global warming effect on water )
As a result, there is an acute shortage of water suitable for food and other purposes. In fact, the only source of fresh water in those areas is now rainwater. It has also been observed that the people of about 10-15 villages collect rain water in a pond and use that water throughout the year.
One study found that housewives often had to travel 6-7 km to fetch water from a pond. If the sea level rises due to global warming, this situation may occur in almost the whole of Bangladesh. Already some parts of the world (e.g. Maldives, parts of India) have been submerged due to rising sea levels due to global warming and a large portion of the population of those countries have become “climate refugees”.
( Global warming effect on water )
Bangladesh is a riverine country. As a result of global warming, the type of rainfall may change and the flow and movement of water in rivers may also change, which will have far-reaching effects.
Global warming effect on water
Strategies to prevent water pollution in Bangladesh and the responsibility of citizens
We know pretty much how water is polluted. In order to prevent water pollution, knowing the causes of pollution and taking measures to remedy it will be the big strategy to prevent pollution. Let’s take a look at the strategies that can be adopted to prevent water pollution.
Global warming effect on water
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Water Pollution
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