Sea Ice And The Earth’s Orbit Might Be Linked
People don't usually associate sea ice together with the Earth's orbit. A study though is looking into the relationship between sea ice and the Earth's orbit. Sea ice and the Earth's orbit might be linked in some way, as the study contends.
The Earth always had an Ice Age. Scientists have seen that the Earth had been into a number of Ice Ages which were broken by interglacial periods. Scientists say that the Earth right now is in an interglacial period.
The Ice Ages and the interglacial periods have been on a 100,000-year cycle. A team of researchers say that a variation in the Earth's orbit might cause sea ice in the Southern Hemisphere to expand. This would then let sunlight be reflected back into space, which would cause global cooling.
Jung-Eun Lee is the lead author of the study and an assistant professor at Brown University's Department of Earth, Environmental and Planetary Studies. She said that sea ice has been important in the Southern Hemisphere. If this is combined with the Earth's orbit having variations, at some points in time these two come together that would result in an Ice Age.
Serbian scientist Milutin Milankovitch first proposed of the recurring changes in the Earth's orbit in the 1930s. He observed that these changes have a pattern, and that the cycle can go to a 100,000-year period to a 21,000-year period. These changes can also occur when the Earth's tilt is changed a bit, which can occur within the 21,000-year period, according to Brown University's site.
The change in the Earth's tilt is called precession. When this happens, the Earth's tilt could cause the Southern Hemisphere's summers to be cooler as the area is tilted much farther away from the Sun. In itself this would not be much, but each hemisphere has a different capacity to grow sea ice as well, as Science Daily reports.
The Southern Hemisphere is more likely to grow more sea ice, as compared to the Northern Hemisphere. There isn't much room for sea ice to grow in the Northern Hemisphere because the ocean's area there is much smaller than that in the Southern Hemisphere. Sea ice then can expand more if ever the Earth's tilt moves the region away from the Sun.
Sea ice expansion could be felt even more so if the Earth is within the time for another Ice Age. This could happen if it is near a 100,000-year period of Ice Age. Another Ice Age though is hard to predict, as Lee has said. This is because human activity has contributed much to climate change, which could have an effect on the Ice Age timing period.
The Earth is said to be due for another Ice Age though. Sea ice and the Earth's orbit might be linked to produce it. Astronomers also speculate that methane gas warmed early Mars.
Good Gamers Are Shown Why They Are So Skilled
Kids are getting more into video games as consoles and PC gaming become even more popular. Good gamers are shown why they are so in a study.
Global Warming: Antartica Weather To Blame For Fastest Melting Glacier
New research says that local Antarctica weather is the driving force behind the fastest melting glacier ever recorded. The reason for the rapid melting of the Pine Island glacier was previously blamed on continental winds.
Who Owns Antarctica? Find Out Facts About This Icy Continent
Who owns Antarctica and all of its rich marine life? Facts about this continent include a treaty which bans any country from claiming any part of the cold wasteland.
Is the Antarctica a Desert? This Is What Scientists Have To Say
Is the Antarctica a desert? This is one question on the minds of biology students and graduates of geography, while natural scientists are intrigued about all they had studied about the Antarctica. One thing however is clear: people equate the aridness of the desert to the sterile coldness of the Antarctica. This means that both the Sahara desert in Africa may have a lot of similarities with the Antarctica and the North Pole.
Scientist Plans To Recreate Woolly Mammoths In Artificial Womb
Woolly mammoths have been extinct for about 4000 years ago. Harvard scientists claim that they are close to creating woolly mammoth embryo.
MORE IN ITECHPOST
3 Free Ways to Track a Cell Phone by Number
Check out our three verified methods to track a cell phone using their number. Signup to Spyic now for free and access the phone’s location in real-time. Use it in any Android or iOS device without rooting or jailbreaking. See also Cocospy and Spydialer.
A New Material for the Battery of the Future, Made in UCLouvain
Renewable sources of energy such as wind or photovoltaic are intermittent. The production peaks do not necessarily follow the demand peaks.
Top 5 Video Games to Play for a Truly Unique First Date
Video games have a way of taking us outside of ourselves and live in a fantasy world. It's even better when you're playing a game with someone special!