Contributions of Human Activities To Climate Change

Human demands and expectation for development are ever increasing. This has however affected the climatic condition in no small way. Deforestation is on the rise, release of dangerous gases into the atmosphere and many more. Recently, climate change has been a major point of discuss across the world. In which Human activities have contributed immensely to. Human activities have led to the release of carbon dioxide and other heat-trapping “greenhouse” gases in sufficient quantity to change the composition of the atmosphere, resulting in an accumulation of heat in the Earth’s system, commonly referred to as “global warming”. There is no doubt whatsoever that the planet is warming and it has major consequences for other aspects of climate. This article therefore explores the various human activities that have contributed immensely to climate change.

Burning of Fossil Fuels

Activities of Humans have contributed to climate change by causing changes in Earth’s atmosphere in the amounts of greenhouse gas­es; the largest known contribution comes from the burning of fossil fuels which is the release of carbon dioxide gas to the atmosphere. This Human activities result in emissions of four principal green­house gases such as carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O) and the halocarbons (a group of gases containing fluorine, chlorine and bromine).

  • Carbon dioxide has increased from fossil fuel use in transpor­tation
  • Building heating
  •  Cooling and the manufacture of cement and other goods.

Methane has increased as a result of human activities related to

  • Agriculture
  • Natural gas distribution
  • Landfills.

Nitrous oxide is also emitted by human activities such as

  • Fertil­izer use and fossil fuel burning.
  • Natural processes in soils and the oceans also release N2O.

Natural processes are also a small source. Principal halocarbons include the chlorofluorocarbons (e.g., CFC-11 and CFC-12), which were used extensively as refrigeration agents and in other industrial processes before their presence in the atmosphere was found to cause stratospheric ozone depletion.


Deforestation which is the process of clearing, removal of forest trees where the land is converted to other type of activities for non-forest use. Deforestation has been caused by many factors such as Poverty, unemployment, Industrialization and urbanization etc. The trees which are supposed to absorb the CO2released into the atmosphere have been fell as a result of factors already listed above. The sad thing is that, trees are felled and are not replaced to make up for new ones. However, if poverty and unemployment is strictly tackled by the government, it will help reduce indiscriminate felling of trees.In conclusion, human activities in the Transport, Industrial, Agricultural, Chemical, Gas sectors respectively etc. will continue to hurt the atmosphere, because human existence will continue to demand for development in all aspect of life. But they say to every problem, there is a solution. The solutions on how to mitigate the effects of climate change we be discussed in subsequent series

Lasisi Hammed Tobiloba

Project Planning Director, ECO Sustainers

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