Climate change is a natural process. But this process is occurred by both natural stuff and divine material. Human is the main contributor to climate change especially after the industrial revolution in the 1800s. Human influence is clear on the climate system and recent anthropogenic emissions and greenhouse gases are the highest of the climate system are unequivocal and since the 1950s, many of the observed changes are unprecedented over decades to millennia. Building on two previous studies, a landmark 2013 peer-reviewed study evaluated 10,306 scientists to confirm that over 97 percent of climate scientists agree, and over 97 percent of scientific articles find that global warming is real and largely caused by humans. Not only global warming but every kind of changing climate reason have a connection with a human.
Here some man-made a contribution I write down below :
Population: Population is such a way that grabs another scope for climate change. Now overall more than 7.7 billion people are sharing this Earth. A huge amount of population needs, as well as much food, water, shelter, livelihood, transportation all, are connected with climate change directly or indirectly. A study on global environmental change in 2009 determined that One child can produce 20 times more greenhouse gas than a person will save by driving a high-mileage car, recycling, using energy-efficient appliances and light bulbs, etc. Each child born in the United States will add about 9,441 metric tons of carbon dioxide to the carbon legacy of an average parent. Recently China overtook the United States to become the world’s leading greenhouse gas emitter. Which has the largest amount of population More than 1.4 billion according to UN data.
All over the world maximum, humans eat meat to fill up needed protein or I can say mostly they fond meat especially red meat. Meat is considered one of the prime factors contributing to the current sixth mass extinction. The 2019 IPBES Global Assessment Report on Biodiversity and Ecosystem Services found that industrial agriculture and overfishing are the primary drivers of the extinction crisis, with the meat industries having a substantial impact. Globally it is one of the largest sources of greenhouse gases and one of the leading causal factors in the loss of biodiversity, and in developed and emerging countries it is perhaps the leading source of water pollution. Not only for meat but also wool, egg and dairy also affix this agricultural industry.
Like food, humans need many basic needed but this world can’t make a balance above all. Slums are very common now in every city. Unemployment and costly expenses increase the homeless fellow day by day who have legible water and sanitation problem. On the other hand, without maintenance, they directly connected with water pollution and water scarcity. Our planet is one even scientist find yet any other places or planet for living lives. So increasing numbers of the population are divided into the same areas with more problems.
Unbalanced urbanization: Humen live in a civilized society. They can’t live in open-air like animals. One man mostly uses his income for his accommodation. For fancy or need human constructions are increasing day by day. Good urbanization means there will be a most likable lifestyle like well livelihood efficiency, well education institution, best accommodation system, sanitization, electricity, medical advantage, good transportation and a touch of technology. We all want a comfortable modern life. I am not resisting urbanization but the matter of thinking is that there is no balance with nature. Cities are established on the chest of cropland, fields, forests, or after filled Waterland and become crowded day by day. Traffic jam is a very common word for us and this huge number of transport make a great contribution to air pollution and greenhouse effects. Urban people change their environment through their consumption of food, energy, water, and land. And in turn, the polluted urban environment affects the health and quality of life of the urban population.
Unplanned Industrialization: The world is not like before where a family can depend on only one earning member. Expenses are too ascensive and demand is excessive. After the industrial revolution in the 1800s, the global economy is so dependable on industrialization and there is no sign to decrease. Actually, for this huge population and demanding lifestyle, we can’t only depend upon agriculture. But huge productive industrialization is also produced pollution, increased deforestation, greenhouse gases, global warming. Burning fossil fuels is the main cause of increasing greenhouse gases. Industrialization is the main source of urbanization, many types of pollution and deforestation also.
Pollution: Pollution is the greatest contribution of humans in climate change and plastic is the best element for pollution. As more than 70% of the earth’s surface is water-covered. Scientists suspect that before the 2100s Earth’s ocean will have plastic more than fish. A vast amount of the discarded waste of 7.7 billion consumers also finds its way to the oceans. Agriculture has an impact on water pollution due to the use of chemicals such as fertilizers, pesticides, fungicides, herbicides or insecticides running off in the water which also a reason for air pollution. Burning fossil fuel transportation section and the industry is the main culprit for air pollution. And overall populated regions are mainly polluted.
Deforestation: I already wrote upward many points about man-made reasons for climate change. Those all connected with deforestation. Forests cover 31% of the land area on Earth and annually 75,700 square kilometers (18.7 million acres) of the forest is lost due to wildfire, agricultural clear-cutting, urbanization, industrialization, the lumber industry, and others. For the huge number of productive animals, we need more grazing land and also harvested feed. Both are the reason for deforestation. About 85 percent of the world’s soybean crop is processed into meal and vegetable oil, and virtually all of that meal is used in animal feed. Approximately six percent of soybeans are used directly as human food, mostly in Asia. The livestock sector is also the primary driver of deforestation in the Amazon, with around 80% of all converted land being used to rear cattle.91% of land deforested since 1970 has been converted to cattle ranching. Overpopulation, hunting livelihood, modern civilization take away us from reforestation.
War: At this point, I extremely tensed. The power of modern science was finally wedded to the primordial dark side of human nature. You can have a clear idea of violence by refugee’s problems. The result was the most savagely violent period in human history. However, the methods of modern warfare cause far greater devastation on the environment. The progression of warfares from chemical weapons to nuclear weapons has increasingly created stress on ecosystems and the environment. Specific examples of the environmental impact of war include World War I, World War II, the Vietnam War, the Rwandan Civil War, the Kosovo War, and the Gulf War. In August 1945, the United States of America dropped an atomic bomb over the city of Hiroshima in Japan. About 70,000 people died in nine seconds at the bombing in Hiroshima. After three days the United States dropped a second atomic bomb on the industrial city of Nagasaki, instantly killing 35,000 people. Marine ecosystems during World War II were damaged not only from chemical contamination but also from oil contamination. To this day, traces of oil can still be found in the Atlantic Ocean from the naval shipwrecks which happened during World War II. Military activity has significant impacts on the environment. Military land use needs (such as for bases, training, storage, etc) often displace people from their lands and homes. The military activity uses solvents, fuels and other toxic chemicals that can leach toxins into the environment that remain there for decades and even centuries. Furthermore, heavy military vehicles can cause damage to soil and infrastructure which causes of greenhouse effects by burning fossil fuels. There are many developed countries that are very concerned about climate change but still these countries are funding lion’s share in the military. At present military funding is higher than before where most of the activities are connected with climate change.
There are many points I write but still many are missing, all are connected with one another. After reading anyone can realize that human is the main reason for climate change instead human is the only pillar to stop genocide. But most of the people don’t have the fear of climate danger they are frightening a lion who is living in the black hill.
Rowshon Ara/RA -13/2019