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The Science Behind Climate Change: How Humans Are Causing This Worldwide Phenomenon?

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  • How are humans causing climate change?

Global warming and climate change are paradoxically existing phenomena. Humans cause it, and humans pay the highest price for it.  In the history of life on Earth, typhoons, heat waves, firestorms, floods, and strong winds have always been a part of everyday life.

On the other hand, we are now seeing destruction and devastation on a magnitude that has never been witnessed before, which is horrific.

In the past year, we were hit by devastating natural disasters, such as the cyclone named Idai, deadly heatwaves in India, Pakistan, and Europe, and floods in Southeast Asia. The growing frequency and intensity of extreme weather events have already affected the lives of millions of people in nations spanning from Mozambique to Bangladesh.

How are humans causing climate change?

Since the commencement of the Industrial Revolution, there has been a consistent rise in the Earth’s average temperature.

The most important link between increasing temperatures and human activity is that of greenhouse gases, which are responsible for retaining the heat generated by the sun. Because it is present in the atmosphere in such great proportions, carbon dioxide (CO2) is the most important.

The average temperature of the Earth’s surface has grown by around 1.1 degrees Celsius since 1850. In addition, beginning in the middle of the 19th century, the temperatures of the most recent four decades have been higher than those of the decades that came before them.

We also know that carbon dioxide is to blame for the absorption of heat from the sun. Satellites have identified a decrease in the amount of heat lost into space at the same wavelengths that CO2 can absorb radiation.

This greenhouse gas is emitted into the atmosphere as a consequence of human activities such as the combustion of fossil fuels and the harvesting of trees from forests. It should not come as much of a surprise that CO2 levels increased at the same time that both of these activities began to pick up speed after the 19th century.

To name a few examples of havoc that has been wreaked: 

Australian Wildfires

The wildfire season in Australia was the worst it had ever been at the beginning of the year 2020. This was because Australia had just had its hottest year, which had dried up the soil and fuel sources. Flames have consumed more than 10 million acres of land, 28 lives have been lost, whole neighborhoods have been leveled, thousands of homes have been destroyed, and millions of people have been exposed to harmful smoke. After the extinction of over a billion native organisms, certain species and ecosystems may never fully return.

East African Drought

The Horn of Africa is twice as likely to face drought as other parts due to increasing global temperatures. The agricultural and animal losses that have occurred as a direct consequence of the terrible droughts that have occurred on many occasions in 2011, 2017, and 2019 are total. Even though 15 million people in Ethiopia, Kenya, and Somalia need aid due to the drought, just 35 percent of the required money has been provided. People have been forced out of their homes and abandoned without the resources necessary to provide for their families. Currently, millions of people all over the globe are struggling to get food and water due to widespread and severe shortages.

Idai and Keneth Cyclones

Cyclone Idai devastated the Southern African nations of Zimbabwe, Malawi, and Mozambique in March 2019, leaving millions of people homeless and in need of food and shelter. The cyclone was responsible for the deaths of more than a thousand people. The deadly landslides destroyed everything in their path, including homes, crops, and infrastructure. Storm Kenneth hit northern Mozambique exactly six weeks later, making landfall in areas without a tropical storm since satellite technology was first introduced.

People are being forced to relocate directly due to climate change, which exacerbates their already precarious financial condition and increases hunger risk. Natural catastrophes are at least four times more likely to necessitate the transfer of people to less developed countries than to more affluent countries.

Everyone on the planet is in a race against the wall clock to find ways to cut emissions and provide assistance to those who are most at risk from the effects of climate change, both now and in the future. It is of the utmost importance that action is taken right now.

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