Never miss a story

Get subscribed to our newsletter


×
An artist's impression of ice age Earth at glacial maximum. Wikimedia commons

London: October 30, 2016: Oceans may be responsible for making the Earth move in and out of ice ages every 100,000 years, finds a study.

According to the study published in the journal Geology, oceans sucking carbon dioxide (CO2) out of the atmosphere may have triggered this phenomena.


NewsGram brings to you current foreign news from all over the world.

Dubbed the “100,000-year problem”, this phenomena has been occurring for the past million years or so and leads to vast ice sheets covering North America, Europe and Asia.

By studying the chemical make-up of tiny fossils on the ocean floor, the team discovered that there was more CO2 stored in the deep ocean during the ice age periods at regular intervals every 100,000 years.

This suggested that extra carbon dioxide was being pulled from the atmosphere and into the oceans at this time, subsequently lowering the temperature on the Earth and enabling vast ice sheets to engulf the Northern Hemisphere.

NewsGram brings to you top news around the world today.

[bctt tweet=”Marine algae play a key role in removing CO2 from the atmosphere as it is an essential ingredient of photosynthesis.” username=””]

“We can think of the oceans as inhaling and exhaling carbon dioxide, so when the ice sheets are larger, the oceans have inhaled carbon dioxide from the atmosphere, making the planet colder. When the ice sheets are small, the oceans have exhaled carbon dioxide, so there is more in the atmosphere which makes the planet warmer,” said Carrie Lear, researcher at the Cardiff University, Britain.


Cardiff University, Britain. Wikimedia commons

“By looking at the fossils of tiny creatures on the ocean floor, we showed that when ice sheets were advancing and retreating every 100,000 years, the oceans were inhaling more carbon dioxide in the cold periods, suggesting that there was less left in the atmosphere,” Lear added.

Marine algae play a key role in removing CO2 from the atmosphere as it is an essential ingredient of photosynthesis.

Check out NewsGram for latest international news updates.

CO2 is put back into the atmosphere when deep ocean water rises to the surface through a process called upwelling. But when a vast quantity of sea ice is present, this prevents the CO2 from being exhaled, which could make the ice sheets bigger and prolong the ice age.

The last ice age ended about 11,500 years ago, and began 21,000 years ago, according to earlier study reports. (IANS)


Popular

Unsplash

Feminism itself is nothing but a simple movement that pursues equal rights for women (including transwomen) and against misogyny both external and internal.

"In India, to be born as a man is a crime, to question a woman is an atrocious crime, and this all because of those women who keep suppressing men in the name of feminism."

Feminism, a worldwide movement that started to establish, define and defend equal rights for women in all sections- economically, politically, and socially. India, being a patriarchal society gives a gender advantage to the men in the society thus, Indian feminists sought to fight against the culture-specific issue for women in India. Feminism itself is nothing but a simple movement that pursues equal rights for women (including transwomen) and against misogyny both external and internal. It states nowhere that women should get more wages than men, that women deserve more respect than men, that's pseudo-feminism.

Keep Reading Show less
wikimedia commons

Yakshi statue by Kanayi Kunjiraman at Malampuzha garden, Kerala

Kerala is a land of many good things. It has an abundance of nature, culture, art, and food. It is also a place of legend and myth, and is known for its popular folklore, the legend of Yakshi. This is not a popular tale outside the state, but it is common knowledge for travellers, especially those who fare through forests at night.

The legend of the yakshi is believed to be India's equivalent of the Romanian Dracula, except of course, the Yakshi is a female. Many Malayalis believe that the Yakshi wears a white saree and had long hair. She has a particular fragrance, which is believed to be the fragrance of the Indian devil-tree flowers. She seduces travellers with her beauty, and kills them brutally.

Keep Reading Show less
Pinterest

Ancient India not only made mentions of homosexuality but accepted it as well.


The LGBTQ+ acronym stands for Lesbian, Gay, Bisexual, Transgender, Queer, and others. In India LGBTQ+ community also include a specific social group, part religious cult, and part caste: the Hijras. They are culturally defined either as "neither men nor women" or as men who become women by adopting women's dress and behavior. Section 377 of the India Penal code that criminalized all sexual acts "against the order of nature" i.e. engaging in oral sex or anal sex along with other homosexual activities were against the law, ripping homosexual people off of their basic human rights. Thus, the Indian Supreme Court ruled a portion of Section 377 unconstitutional on 6th September 2018.

Keep reading... Show less