Dhaka, Feb. 14 -- Indiscriminate urbanisation has created serious environmental problems across the world. Above all, global warming has turned critical. Between 1880 and 2018, the temperature of the Earth's surface increased by around 0.9 degree C. The resulting rise in global sea levels and the destruction of ecosystems that are unable to withstand these rising temperatures will have a major impact on the everyday life of billions of people. By the end of this century, the average temperature on Earth could rise by anything between 1.1 degree C to 6.4 degree C, according to an intergovernmental panel on climate change. And the global average sea-level rise is forecast to be somewhere between 0.4m and 0.77m, with every 0.1m rise in globa...