Global warming: What it is?
Global Warming Definition: “Global warming is a consistent upsurge in the earth’s average temperature denoted by increasing global surface temperatures caused or influenced by the uninterrupted emissions of greenhouse gases, over 90% of the air getting polluted by carbon dioxide and CFCs like Methane and Nitrous oxide and other air pollutants affecting the climate sensitivity and levels of precipitation of the planet”. Global warming: What it is? Over the past 50 years, there has been a gradual rise in the earth’s average global temperature, and over the current years, this trend has been accelerating at a faster pace. This change has severely disrupted the climatic balance of the earth by trapping several greenhouse gas radiations in the atmosphere and causing the planet to get hotter. Dominantly, the largest source of this heat-trapping pollution lies in 1) combustion of fossil fuels, 2) Emissions from the transportation sector. It is also known as the ‘Greenhouse Effect,’ which is one of the major causes affecting global warming. Though the current state of global warming is considered quite controversial, authentic researches have provided pertinent data to support the same. Widespread adoption and implementation of necessary solutions are essential to restrain these emissions and curtail the intensified effects of climate change. Now, we shall move forward to a detailed discussion on the causes and effects of global warming. Causes of Global warming: Under this head, the causes can be divided into two 1) Manmade 2) Natural. Global warming: is it a human-made cause?
Deforestation affects the release of aerosols and other chemical compounds that affect clouds and changes in wind patterns, causing a flux in precipitation levels. In basic terms, Trees and plants are responsible for being the primary source of oxygen. By taking the carbon dioxide in, they release oxygen in the air, thereby maintaining a state of ecological balance, causing lesser air pollution. Planned human activities like continued forest loss for industrial and commercial motives drive the increase in carbon dioxide concentrations. As we know, Carbon dioxide is one of the leading heat-trapping gases, mainly responsible for average warming and environmental imbalance over the past few decades.
In this fast pacing world, people often use vehicles even for covering short distances. Gaseous emissions from cars and vehicles often drive temperature rise by trapping energy, which translates into heat. Such activities come under ‘anthropogenic forcing,’ i.e., human-influenced forces.
In today’s state of successive climate imbalance and issues of global warming, we all know that human-made causes have very high tendencies towards rising global surface temperatures. Other factors that add up to the causes are widespread commercialization and increased use of technological appliances such as Air conditioners and refrigerators. The atmospheric ozone layer is responsible for protecting the earth’s temperature from the sun’s harmful UV radiation. Such practices have added an extra layer of CFCs or Chlorofluorocarbons in the air, depleting the intensity of the ozone layer.
According to a report stated in 2018, some of the significant global anthropogenic greenhouse gas emissions are almost equal to 52 billion tonnes of Carbon dioxide. Out of which 72% is released from industries and power plants. With the advent of industrialization, the rising usage of electricity and heat, global warming has increased.
Frequent practices of agriculture take up almost 50% of the world’s habitable land. Short term agricultural cultivation affects nearly 24% of the permanent land-use change. These activities also add up to the rise in temperature and GHG emissions.
Most of the heat-trapping emissions from burning coal, gas, and oil from industries and cars along with widespread Deforestation and rising levels of black carbon pollution or ‘soot’ in the form of aerosols affecting earth’s albedo comes under this type. Also, the primary gas causing Global warming is Carbon dioxide, which is influenced by rising overpopulation. Natural causes of Global warming:
Global warming: Its effects and impacts The major impacts of global warming include societal, economic, and health impacts. It can cause a lot of harm if it continues the same way as it is happening now. Here are its certain impacts:
A consistent rise in surface temperatures, because of increased emissions of greenhouse gases and other air pollutants leading to severe climate change is known as “Global warming”.
A few common man made causes include industrialization, use of vehicles, combustion of fossil fuels, deforestation, emission of CFCs etc. And natural causes include forest fires, melting glaciers leading to rise in sea level, volcanoes and imbalances in solar radiations.
When the acid content in the oceans increase owing to raised levels of polluted air circulation. It’s known as Ocean acidification. It hampers marine life severely.
Among the major solutions a few common ones are Energy efficiency, setting a high price on carbon, vehicle fuel economy, usage of biofuels from organic waste, and protection of more and more forests.
Harmful impacts include Rise in overall global temperature, threat to aquatic life, flooding, desertification due to scanty rainfall, and loss of habitation.
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