Our Earth is the only planet in our solar system with liquid water on the surface, and it has the most precious features called the atmosphere and many more things. With the passage of time, we human beings have faced a lot of man-made problems regarding our home planet. In the present scenario, a few global problems like global warming and climate change are concerning. The phenomenon known as “global warming” is the rise in average air temperature in the vicinity of Earth’s surface over the last one to two centuries.
Since the middle of the 20th century, researchers studying climate have amassed extensive data on a range of meteorological events, including temperature, precipitation, and storms, as well as associated factors that affect climate, like ocean currents and the chemical makeup of the atmosphere. According to these data, Earth’s climate has varied across nearly every imaginable timescale since the beginning of geologic time, and human activity has been influencing the rate and magnitude of current climate change since at least the start of the Industrial Revolution.
The IPCC’s Sixth Assessment Report (AR6), published in 2021, noted that the best estimate of the increase in global average surface temperature between 1850 and 2019 was 1.07°C (1.9 °F). According to a 2018 IPCC special report, human activity has raised global average temperatures by 0.8 to 1.2 °C (1.4 to 2.2 °F) since pre-industrial times. The majority of the warming observed in the latter half of the 20th century can also be attributed to human activity.
According to the UN | United in Science 2021, the average global temperature for the past five years was among the highest on record, and the scale of recent changes across the global climate system is unprecedented over many centuries to many thousands of years. Earth has previously seen climate change without human assistance. However, compared to previous warming events, the current warming of the climate is happening far more quickly than our expectations.
According to models, the average surface temperature of Earth will rise in tandem with the concentration of greenhouse gases as long as fossil fuels are consumed on a global scale. By the end of the twenty-first century, average surface temperatures could increase by 2°C to 6°C based on reasonable emission scenarios. Because the Earth system hasn’t fully adapted to the environmental changes humans have already caused, some of this warming will still happen even if future greenhouse gas emissions are decreased. More than just rising temperatures are being affected by global warming. Increased heat causes ice caps and glaciers to melt, rainfall patterns are altered, coastal erosion is exacerbated, the growing season is extended in some areas, and the ranges of some infectious illnesses are changed. A few of these changes are already taking place.
Sunlight is the source of Earth’s temperature. Bright objects like clouds and ice reflect into space about thirty percent of the incoming sunlight. The majority of the remaining 70% is absorbed by the land, the remainder by the ocean, and the atmosphere. Our Earth becomes heated by solar energy absorption. This absorption and radiation of heat by the atmosphere, the natural greenhouse effect, is beneficial for life on Earth. Carbon dioxide is taken up and stored by trees. Carbon dioxide and other greenhouse gases are released when forests are removed or even just disturbed. Ten percent or more of global warming is caused by loss and damage to forests. If we don’t put an end to deforestation, there is no way that we can combat the climatic catastrophe. It is more important than ever to preserve our forests.
A recent analysis claims that between 2015 and 2020, deforestation in India increased at the greatest rate in the previous 30 years. The average deforestation during these years was 668,400 hectares (ha), ranking the nation second only to Brazil.
It is a disaster. Every human being plays an important role in it. We are discussing how to stop global warming in air-conditioned rooms. We are cutting our throat for a few minutes of satisfaction. From my point of view, if we do not stop it as soon as possible, it will destroy our whole planet, and it may be the cause of the end of life on our home planet.
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Kifayat Salam