A climate scientist believes a drop in pollution due to the coronavirus lockdown could have exacerbated Cyclone Amphan in India and Bangladesh.
Professor Vinoj Velu, of the Indian Institute of Technology, Bhubaneswar, said a drop in sooty particles in the atmosphere allows more of the sun’s energy to reach the sea.
The wind speed in cyclones is largely determined by the temperature of the sea, which is also affected by global warming.
Bangladesh, officially the People’s Republic of Bangladesh, is a country in South Asia. It is the eighth-most populous country in the world, with a population exceeding 162 million people.
Bangladesh is one of the most densely populated countries in the world.
Dhaka, the capital and largest city, is the nation’s economic, political, and cultural hub. Chittagong, the largest seaport, is the second-largest city.
Climate is the long-term average of weather, typically averaged over a period of 30 years. More rigorously, it is the mean and variability of meteorological variables over a time spanning from months to millions of years.
In meteorology, a cyclone is a large scale air mass that rotates around a strong center of low atmospheric pressure. Cyclones are characterized by inward spiraling winds that rotate about a zone of low pressure and typically bring winds, rain, high waves and storm surges to the areas they pass.
In the Atlantic and the northeastern Pacific oceans, a tropical cyclone is generally referred to as a hurricane (from the name of the ancient Central American deity of wind, Huracan), in the Indian and south Pacific oceans it is called a cyclone, and in the northwestern Pacific it is called a typhoon.
India, officially the Republic of India, is a country in South Asia. It is the second-most populous country, the seventh-largest country by land area, and the most populous democracy in the world. New Delhi is the capital.
It has an exceptionally diverse population, with Hindus, Muslims, Christians, Sikhs, Buddhists, Jains and other religions speaking over 21 recognised languages.
During the 2020 Covid-19 epidemic, lockdown has come to mean the practice of attempting to control transmission of the virus by means of restricting people’s movement and activities on a broad scale, usually on a national or state-wide basis.
