Global Warming
Global warming
Essay
Global warming is simply defined as an increase in the average global temperatures. Though, it is an environmental problem, it has serious implications on the global economics, geopolitics, society, humanity and all living beings. “Global warming is one of the most controversial science issues of the 21st century, challenging the very structure of our global society” (Mark).
Though, there has been controversies between two schools of scientific thought, one calling it is a myth and the other considering it is a reality, there is sufficient evidence to support the later. Anthropogenic activities, causing increased emissions of green house gases, are behind the global warming. It has been established, that, if not addressed properly and immediately, it would have catastrophic impacts.
Global warming means earth is becoming warmer gradually. There is increase in average global temperatures of air and oceans, accompanied by widespread melting of glaciers and rising of sea level. The United Nations Intergovernmental Panel on Climate Change (IPCC) in its ‘Synthesis Report on Climate Change’, states that there is clear evidence for a 0.6 0C rise in global temperatures and 20cm rise in sea level during the 20th century. It predicts that “global temperatures could rise by 1.4 to 5.8 0C and sea level could rise by 20 to 88cm by the year 2100.” Majority of the scientists and research organisations, including IPCC have reached on consensus that global warming is caused by massive increase of green house gases such as Carbon dioxide (Co2) in atmosphere resulting from burning of fossil fuels and deforestation. The temperature of earth is maintained by the balance between the heat energy coming from the sun and the heat energy returned back to space. Some atmospheric gases: Carbon dioxide (CO2), Methane (CH4), Nitrous Oxide (N2OX), Chlorofluorocarbons (CFC) and water vapours are important to this temperature balance. They form
Essay
Global warming is simply defined as an increase in the average global temperatures. Though, it is an environmental problem, it has serious implications on the global economics, geopolitics, society, humanity and all living beings. “Global warming is one of the most controversial science issues of the 21st century, challenging the very structure of our global society” (Mark).
Though, there has been controversies between two schools of scientific thought, one calling it is a myth and the other considering it is a reality, there is sufficient evidence to support the later. Anthropogenic activities, causing increased emissions of green house gases, are behind the global warming. It has been established, that, if not addressed properly and immediately, it would have catastrophic impacts.
Global warming means earth is becoming warmer gradually. There is increase in average global temperatures of air and oceans, accompanied by widespread melting of glaciers and rising of sea level. The United Nations Intergovernmental Panel on Climate Change (IPCC) in its ‘Synthesis Report on Climate Change’, states that there is clear evidence for a 0.6 0C rise in global temperatures and 20cm rise in sea level during the 20th century. It predicts that “global temperatures could rise by 1.4 to 5.8 0C and sea level could rise by 20 to 88cm by the year 2100.” Majority of the scientists and research organisations, including IPCC have reached on consensus that global warming is caused by massive increase of green house gases such as Carbon dioxide (Co2) in atmosphere resulting from burning of fossil fuels and deforestation. The temperature of earth is maintained by the balance between the heat energy coming from the sun and the heat energy returned back to space. Some atmospheric gases: Carbon dioxide (CO2), Methane (CH4), Nitrous Oxide (N2OX), Chlorofluorocarbons (CFC) and water vapours are important to this temperature balance. They form