Climate Change: The Negative Impact On The Environment

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Climate change is increasingly recognized as a major challenge. It is widely accepted that the greenhouse gas emissions caused by humans are having a negative impact on the environment. The most important greenhouse gas, arising from human activity, is carbon dioxide (CO2). Virtually all human activities cause the CO2 emissions that lead to climate change. By using electricity generated from fossil fuel power stations, burning gas for heating or driving a petrol or diesel car, every person is responsible for CO2 emissions.
Furthermore every product or service that humans consume indirectly creates CO2 emissions; energy is required for their production, transport and disposal. These products and services may also cause emissions of other greenhouse
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The magnitude of this effect can be described by a term called “climate change”. The Intergovernmental Panel on Climate Change (IPCC) defines climate change as “a change in the state of the climate that can be identified by changes in the mean and/or the variability of its properties, and that persists for an extended period, typically decades or longer.” It refers to any change in climate over time caused by natural variability or human activity (IPCC Guidelines for National Greenhouse Gas Inventories, 2006). On the other hand, United Nations Framework Convention on Climate Change (UNFCCC) refers climate change as “a change of climate which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and that is in addition to natural climate variability observed over comparable time periods” (United Nations, 1992). Both of two definitions are consistent about the direct or indirect effects of the anthropological…show more content…
Most climate scientists are agreed on the key parameter of climate change is the increasing amount of greenhouse gas concentration in the air. Solomon et al claimed that even if carbon dioxide emission is stopped now, the effects on climate could be reversed in 1000 years’ time (Solomon et al, 2009). According to NASA statistics, “the atmospheric concentrations of carbon dioxide, methane, and nitrous oxide have increased to levels for many years and concentration of carbon dioxide has increased from 315.71 ppm in 1956 to 398.78 ppm in 2014. Ocean acidification is caused by the absorption of 30% of the emitted anthropogenic carbon dioxide in the oceans (NASA Earth Science Communication Team, 2015). All those evidences have proved that the human factor is one of the major factors in rapid rise of greenhouse gas emissions. Additionally, as the greenhouse gas emission amounts continue to rise, the climate change would cause a change in whole climate system. Limiting or at least being aware of the current condition of greenhouse gases become significant as the consequences become dramatically

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