Scientists attribute global warming plateau to natural variations

George C By George C, 22nd May 2015 | Follow this author | RSS Feed | Short URL http://nut.bz/341mha_a/
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According to research by McGill University physics professor Shaun Lovejoy, the temporary halt in global warming trends is indicative of natural fluctuations in temperature.

Scientists attribute global warming plateau to natural variations

According to research by McGill University physics professor Shaun Lovejoy, the temporary halt in global warming trends is indicative of natural fluctuations in temperature. This viewpoint is derived from the statistical analysis of global temperatures in the period between 1998 and 2013. The physics professor noted that the variations connected to cooling trends veiled warming effects occurring globally. Continuous increase in carbon dioxide and other greenhouse gas emissions feeds the phenomenon.

In a paper published in Geophysical Research Letters, Shaun Lovejoy highlights the accuracy of a statistical methodology applied in the study. This is in contrast to an earlier study that concluded that global warming was not just a natural variation in global climate. The study had employed pre-industrial temperature proxies in the evaluation of historical climate patterns.

The professor's recent report indicated that despite the fact that global average temperatures stayed high in relation to trends observed in the past, they fell below most estimates. Scientists used advanced computer models to make predictions in terms of the effects of greenhouse gas emissions covering the period 1998 to 2013. Also known as, hiatus or pause, the slowing down in warming effects throughout the 15-year period has managed to draw the attention of the scientific community in a big way.

Some scientists have begun questioning the view that global warming in the industrial era is due to human activities involving the burning of fossil fuels. Professor Shaun Lovejoy indicated that the earth experienced a natural cooling fluctuation of between 0.28 to 0.37 degrees Celsius in the 15-year period under review. This pattern tallies with historical trends occurring every 20 to 50 years. The professor pointed out that proxies, such as tree rings, ice cores, and lake sediment provide researchers with solid illustrations of these variations.

Tags

Climate, Global Warming, Temperature

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