Climate Change Shaped Through Solar Activity In Cooler Periods

Scientists found which natural climate change was significantly influenced by solar activity particularly in cooler periods. Although the research evaluated the impact of the Sun on our climate during the last 4 millennia, researchers declare that their results are consistent on the decades.

Until recently, research linked climate change to many other factors such as volcanic activity or oceanic heat range cycles. But more and more studies reveal which the amount of solar radiation which reach our planet may play an significant role in how climate is actually shaped over time.

Researchers from Aarhus University inside Denmark wrote within their recently published paper that during the last 4,000 years there's a tight connection between solar flares and also the summer oceanic temperatures recorded within North Atlantic. However, authors noted which the link wasn't visible 4,000 years ago.

About 12,000 years previously, when the latest Ice Age finished, our planet had an overall warm climate along with varying temperatures for prolonged amounts of time. For instance, in the past 4, 000 years, the climate was slightly colder, and the oceanic currents were weakened.

“We know that the Sun is important for our climate, however the impact is not obvious. Climate change appears to be either sturdy or weakened through solar activity. ”

authored Marit-Solveig Seidenkrantz, co-author from the study and professor at the Geoscience Department, Aarhus University, Denmark.

In accordance with Ms. Seidenkrantz, solar influence upon planetary climate wasn't constant over time, but the greatest influence was recorded during cool periods, at least within the North Atlantic.

For their research, scientists analyzed the summer surface temperatures within the North Atlantic region throughout the last 9,300 years. Since the oldest worldwide temperature records date back to 1850, researchers evaluated climate variation over millennia by researching traces of marine algae obtained in seabed sediments within the North Atlantic.

Scientists liked the distribution regarding algae to fluctuations in sea surface levels and made it possible to create a model that can be applied on a bigger time scale. Further analysis of the information revealed that climate change as it had been reflected by sea surface temperatures was affected by intense solar activity and bursts over the last 4,000 years.

Interestingly, scientists found that the fluctuations in climate triggered through solar activity were recorded both on geological time period scales and on smaller scales of ten to twenty years. Prof Seidenkrantz argued that the new findings will assist the scientific community expand its present knowledge on the mechanism of climate change and its particular triggering factors.

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