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Emission of CO2 Levels Higher In Antarctica Than Believed

The team used the pH measurements to calculate the amount of dissolved carbon dioxide, and then uses that to figure out how strongly the water is absorbing or emitting carbon dioxide to the atmosphere.

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Antarctica
Antarctica melting away at alarming rate: Study. Flcikr

The open water nearest to the sea ice surrounding Antarctica releases significantly more carbon dioxide in winter than previously believed, showed a study conducted using an array of robotic floats.

The robotic floats diving and drifting in the Southern Ocean around the southernmost continent made it possible to gather data during the peak of the Southern Hemisphere’s winter from a place that remains poorly studied, despite its role in regulating the global climate.

“These results came as a really big surprise, because previous studies found that the Southern Ocean was absorbing a lot of carbon dioxide,” said lead author Alison Gray, Assistant Professor at the University of Washington.

CO2, Antarctica
Carbon atoms move between rocks, rivers, plants, oceans and other sources in a planet-scale life cycle. Flickr

In the Southern Ocean region, carbon atoms move between rocks, rivers, plants, oceans and other sources in a planet-scale life cycle.

It is also among the world’s most turbulent bodies of water, which makes obtaining data extremely difficult.

According to the study published in the journal Geophysical Research Letters, the floating instruments collected the new observations. The instruments dive down to 1 km and float with the currents for nine days.

Antarctic-sea
The open water nearest to the ice surrounding Antarctica releases more carbon dioxide. IANS

Next, they drop even farther, to 2 km, and then rise back to the surface while measuring water properties.

After surfacing they beam their observations back to shore via satellite.

Unlike more common Argo floats, which only measure ocean temperature and salinity, the robotic floats also monitor dissolved oxygen, nitrogen and pH — the relative acidity of water.

Also Read: In the Video: Possibilities of Ocean Floor Mapping

The study analysed data collected by 35 floats between 2014 and 2017.

The team used the pH measurements to calculate the amount of dissolved carbon dioxide, and then uses that to figure out how strongly the water is absorbing or emitting carbon dioxide to the atmosphere. (IANS)

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Here’s Why Living in Greener Areas is Important!

The longitudinal study, published in the journal Environmental Pollution, used data from over 6,000 adults, aged between 45-69 from the UK

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Greener Areas
Long-term exposure to Greener Areas could play an important role in preventing metabolic syndrome as a whole, as well as individual components such as large waist circumference, high levels of blood fats or hypertension. Pixabay

Middle-aged and older adults that live in Greener Areas were at a lower risk of developing metabolic syndrome than those living in areas with less green spaces, a new study said.

Metabolic syndrome is a cluster of conditions that occur together and include obesity, hypertension, high blood sugar levels and abnormal fat levels.

“The study found more health benefits in those areas with higher tree coverage, which provides a basis for investigating the types of vegetation that impact positively on our health,” said study author Payam Dadvand from the Barcelona Institute for Global Health.

In this study, the researchers examined the link with metabolic syndrome as a whole, providing an indicator of overall cardiometabolic health, and in the long-term.

The longitudinal study, published in the journal Environmental Pollution, used data from over 6,000 adults, aged between 45-69 from the UK.

Participants underwent four examinations over 14 years (1997-2013), with a series of tests including blood analysis, blood pressure and waist circumference measurements.

Residential greenness was determined by satellite images.

Greener Areas
Middle-aged and older adults that live in Greener Areas were at a lower risk of developing metabolic syndrome than those living in areas with less green spaces, a new study said. Wikimedia Commons

These findings suggest that long-term exposure to Greener Areas could play an important role in preventing metabolic syndrome as a whole, as well as individual components such as large waist circumference, high levels of blood fats or hypertension.

ALSO READ: Eat Your Breakfast To Score Good Marks

The association observed was higher for women than for men.

The study showed that people living in greener areas have slower cognitive decline. Less stress, greater longevity, or a better overall and mental health are other benefits proved by scientific studies. (IANS)