Science

Sun Has Most Impact On Climate When Earth Is Cooler

The Sun plays a crucial role in climate change. A new study conducted by an international team of scientists shows that the impact of the Sun on the climate system is not constant over time. Instead, it has a greater impact when the Earth is cooler. For decades, there has been a lot of discussion as to whether variations in the strength of the Sun have played a role in climate change in the past.

Sun Has Most Impact On Climate When Earth Is Cooler

Close correlation between the activity of the Sun and sea temperature

But more and more studies show that the Sun impacts how the climate varies over time. Now researchers led by Professor Marit-Solveig Seidenkrantz of Aarhus University have found that, over the last 4,000 years, there has been a correlation between solar activity and ocean surface temperature in summer in the North Atlantic. Researchers did not see any correlation in the preceding period.

The Earth’s climate has generally been warm since the end of the Last Ice Age about 12,000 years ago. But the climate was not stable during this year as temperatures varied for long periods. Professor Marit-Solveig Seidenkrantz said that the solar activity either strengthens or weakens the climate change. But the latest study has made one thing clear: the climate is more receptive to the impact of solar activity during cold periods, Seidenkrantz said.

Marine algae provides clue about climate change

To conduct the study, scientists looked at the ocean surface temperatures in summer in the northern portion of the North Atlantic over the last 9,300 years. Direct measurement data is available only for the last 140 years. So, researchers examined marine algae (diatoms) present in sediments deposited on the North Atlantic sea bed. The species distribution of marine algae helped them reconstruct fluctuations in ocean temperatures much further back in time.

Results show a close correlation between variations in solar activity and climate change in the North Atlantic over the last 4,000 years. Professor Seidenkrantz says our climate is very, very complex. By gathering knowledge piece by piece about how individual elements influence each other can help us get the overall picture of the climate change mechanisms.

Findings of the study were published in the latest issue of the journal Geology.

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  • Elven Shaman

    with all the lies, I no longer care. media has done so much harm that I don’t believe anything that uses the typical, so and so WARNS. half the garbage put is warnings, I have had enough, I don’t care until they get some scientists in that are not money driven and hell bent on trying to be right about something they can’t possibly understand within their puny short lives who by the way still use fossil fuels, plastics and waste energy like everyone else.

  • MegaGorgo

    The responses go to show how the denier crowd will latch onto anything. One, this covers only the North Atlantic. Second, as confirmed by satellite observaton, there has been very little change in solar output over the past 50 years.

  • GWizaHoax

    Saw a documentary once where the Royal Observatory in Greenwich, England has been tracking solar flare activity for over 200 years as well as hourly temperatures there and that data was charted and the charts of both were compared, given an offset for the time that the effects took to reach earth and the peaks and valleys of those charts matched with amazing similarity. The other interesting fact about CO2 levels and earths temperatures remains that temps always lead CO2 levels blowing their cause and effect that CO2 brings on warming.

  • Chad Benog

    Just goes to show the media love creating stupid people. Just look at the headline.. When its cooler its because of the sun.. when its warmer its got to be man made global warming. The media and left wing loons will do anything to convince the dummies of the myth that is global warming.

  • James McGinn

    I think this article demonstrates that people that believe in climate change are the most inane people on the planet.

  • Ehuud

    How could something that is so large that we can see it with the naked eye despite the fact that is 93,000,000 miles away and is so hot that we can feel it’s heat have anything to do with the temperature here on Earth? Only a few SUV’s can cause temperature changes.

  • Get to Work People

    Bottom line is they have no clue as to what makes the Earths climate. There are so many variables, the Sun, ocean currents, land masses etc…. and maybe even Man plays into all of this.
    But I would say that the Sun would be the #1 factor as it is 1,300,000 times larger than the Earth…

  • Stephen Ma

    Now the earth is getting warmer when our communities are running, may be there will no chance for our earth to be cooler.