This time in India, the heat had started showing its trend from the month of February itself and now it is getting very hot in April as well. Not only India, many countries of the world are facing the heat. On one hand, drought-like conditions are being created in some parts of the earth, and on the other hand, there are some cities where there is danger of water-logging in future. There is no doubt that global warming is a concern right now. Countries around the world are worried about global warming. In this sequence, scientists have also claimed that if proper measures are not taken, many beautiful cities of the world will be submerged in water.
What does heat have to do with sinking cities?
Let us tell you that since 1880, the average global temperature has increased by about one degree Celsius. Scientists fear that by 2035 it could increase by 0.3 to 0.7 degree Celsius. Actually, due to increasing heat or say global warming, glaciers are melting rapidly. Due to which the sea level is rising rapidly. It is fast moving towards the end of existence of some cities.
Disaster incidents will increase
Due to increase in temperature, large amount of water evaporates from the earth and goes into the atmosphere. It falls in the form of heavy rain and creates flood like situation. With the rise in temperature, such incidents will increase. Along with this, incidents like cyclones and storms will also increase. Thus, along with rising water level, many other factors will also threaten the existence of cities.
How is sea level rising due to heat?
Rising temperature is directly responsible for the rise in sea level. In fact, warming or global warming causes sea level rise in two main ways. Glaciers and land-based ice melt faster due to rising temperatures. Its water reaches the sea through rivers etc. from the land. Due to heat, hot water occupies more space in the process of thermal expansion. Therefore the volume of the ocean increases and its water level rises. Apart from this, some local factors can also cause rapid rise in sea level. Like ocean currents and land sinking etc.
