Climate change is real. The weird weather just keeps on hitting the planet earth: An oppressive heatwave tagged Lucifer stifled Europe in August 2017, and a month later, a series of strong Atlantic hurricanes hammered the American continent. Don’t forget that the 2017 California wildfire season that burned approximately 5,590.35 square kilometers. During and after such disasters, the same question always arises: Who is to blame for the global warming and overall climate change?
The role of human activity
Many climate scientists agree that the primary cause of global warming is human activities that result in the expansion of the greenhouse effect. Specific gases in the earth’s atmosphere block the heat radiating from the earth towards the outer space. These gases remain trapped within the atmosphere and rarely respond chemically or physically to variations in temperatures and thus, they force climate change.
A report released by the Intergovernmental Panel on Climate Change concluded that there is over 95% probability that various human activities over the last five decades have warmed our home – planet earth. The Intergovernmental Panel on Climate Change is a group of 1300 scientific experts from different countries under the auspice of the UN.
These professionals concluded that industrial activities that human modernization depends upon have increased the carbon dioxide concentration from 280 parts per million to approximately 400 parts per million over the last 15 decades. Do you think that over a thousand scientists were wrong? Is there any chance that these professionals made a wrong conclusion?
Before humans, natural factors were the primary cause of climate change. For instance, the variations in planet’s orbit over the span of thousands of years caused cycles of ice ages. However, human activities have been accelerating the natural causes of climate changes over the last century. The burning of fossil fuels such as oil and coal has increased the concentration level of carbon dioxide. To a lesser extent, clearing land for industrial, agriculture, and other human activities have also contributed to the increased levels of greenhouse gases in the atmosphere.
According to the climate report released on November 3rd, 2017, Homo Sapiens are the dominant cause of the planetary warming and other related climate issues since the 20th century. The report also paints a dire image of the present and future impact of climate change. It’s estimated that sea levels are likely to rise by 2.4 meters (8 feet) by 2100 and we are likely to witness frequent heat waves.
Besides, Atlantic hurricanes are likely to cause increased precipitation on-shore and may increase in intensity. Tidal floods have already increased by 5-fold to since the 1960s in the United States coastal regions, and the rate continues to increase along the cities along the Atlantic cities.
Just think about it…
The climate has changed throughout the history. Over the last 650,000 years, there has been 7 distinct cycles of glacial advance and retreat. The end of the last ice age about seven thousand years ago marked the beginning of the current climate change era and human civilization. These climate variations are attributed to small changes in the earth’s orbit and to a larger extent, the increased industrial and other human activities.