Can we Imagine world with coast line cities across all countries drowned

yes, it is the case when energy consumption took place at the same rate as now happening. yes, It is global warming. please try to save energy. Global warming is very concerning issue about our future.

Please see the following video link(animated video):
https://www.youtube.com/watch?v=IpVbS9JRopE

world population

The world's population will rise to 9.7 billion in 2050 from the current level of 7.1 billion .....

of these around 4 billions are starve for water.

let treat water as precious and not to waste as our part.

pollution ever

It was between the late 18th century and early 19th century that the Industrial Revolution boomed and flourished throughout developing countries across the globe.
Not only did it bring economic change to the scene, but environmental changes as well. More air, water, and land pollutants were introduced to nature. Natural resources started to be abused and depleted during this period, which ultimately resulted in the degradation of the environment in astronomical levels.