According to a recent study, the first records of the early signs of global warming date back to the 1940s. Back then, spikes in global temperatures were observed in the tropics, Africa, Australia, and South-East Asia.
Researchers also say that between the 1980 and 2000 weather experts were certain that there was a global trend of rising temperatures in most parts of the planet. Nevertheless, during that period scientists also observed more rainfall than usual. So they believed that the new atmospheric events were due to a natural variation since temperatures didn’t rise enough to challenge that theory.
But although supporters of man-made climate change shun fossil fuels because they allegedly led to the increase of greenhouse gas levels to unprecedented levels, Dr. E. Calvin Beisner of the Cornwall Alliance Founder, explained that burning fossil fuels has helped humanity stave off poverty and reduce it from 50 percent in the 1990s to less than 20 percent today.
Beisner explained that fossil fuels greatly increased transportation and access to remote areas of the world. People had access to new goods and technologies, and trade operations flourished leading to new wealth building up in countries that were poverty stricken from cradle to the grave such as China.
Study authors said that they have studied variations in temperature patterns worldwide to learn when exactly global warming occurred. They also plan to use the findings in generating new methods of tackling temperature changes worldwide.
Researchers found that the tropics were the areas affected by global warming when it first emerged. That’s because the tropics and equatorial regions have lower than average range of temperatures so a change in weather there is usually easily detected.
Moreover, these areas of the globe are at a higher risk of extreme weather incidents including flooding and heavy rainfall due to the same reason. But researchers explained that they first observed there were some unusual changes in the tropics’ temperatures in the 1940s. Changes in both polar regions debuted in the early 1980s.
The team also found early signs of global warming in Russia, Canada, and Northern Europe when the annual amount of precipitation was higher than average levels. That happened a few decades later, along with a warming trend observed in Africa, Australia, and South-East Asia.
But some parts of the world became hotter at a slower pace. Study authors said that the U.S.A.’s East Coast was especially protected from rising temperatures. But that may no longer hold true for the next decade.
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