Monday, July 13, 2020
Home Environment Human-Induced Climate Change Makes El Ninos and La Ninas Extreme

Human-Induced Climate Change Makes El Ninos and La Ninas Extreme

Climate change is making El Ninos more extreme, says study

Human-induced climate change has made El Ninos, La Ninas, and the climate phenomenon that drives them more extreme in the industrial age, new research has found.

With greater intensity, these events can worsen storms, drought, and coral bleaching in El Nino years.

The findings, published in the journal Geophysical Review Letters, showed compelling evidence in the Pacific Ocean that the stronger El Ninos are part of a climate pattern that is new and strange.

“What we’re seeing in the last 50 years is outside any natural variability. It leaps off the baseline. Actually, we even see this for the entire period of the industrial age,” said the study’s principal investigator Kim Cobb, Professor at Georgia Institute of Technology in the US.

“There were three extremely strong El Nino-La Nina events in the 50-year period, but it wasn’t just these events. The entire pattern stuck out,” Cobb said.

For the study, the researchers compared temperature-dependent chemical deposits from present-day corals with those of older coral records representing relevant sea surface temperatures from the past 7,000 years.

Impact of climate change
The cycles of El Ninos and La Ninas are disturbed due to climate change. Pixabay

The research identified patterns in the El Nino Southern Oscillation (ENSO), swings of heating and cooling of equatorial Pacific waters that, every few years, spur El Ninos and La Ninas respectively.

The team found the industrial age El Nino Southern Oscillation swings to be 25 per cent stronger than in the pre-industrial records. 

Also Read- Exposure to Air Pollution May Trigger Alzheimer’s in Aged Women, Reveals Research

Every two to seven years in spring, an El Nino is born when the warm phase of the El Nino Southern Oscillation swells into a long heat blob in the tropical Pacific, typically peaking in early winter. It blows through oceans and air around the world, ginning up deluges, winds, heat or cold in unusual places.

Once El Nino passes, the cycle reverses into La Nina by the following autumn, when airstreams push hot water westward and dredge up frigid water in the equatorial Pacific. This triggers a different set of global weather extremes. (IANS)

STAY CONNECTED

18,991FansLike
362FollowersFollow
1,785FollowersFollow

Most Popular

Limit Video Meetings to 30 Minutes, Says Research

Do remote work and video meetings actually tax our brain more than in-person work? According to Microsoft, due to high levels of sustained concentration,...

OTT and Cinema Race is Complicated

After my column, "OTT wants first strike: Bad news for cinema" (Column: B-Town, published on 28.6.20), the question that I am asked is: will...

COVID-19 Can’t Be Eliminated Under Current Conditions

The World Health Organization’s emergency program chief said Friday that the new COVID-19 probably could not be eliminated if current global conditions persisted. “In the...

Lamborghini Launches ‘Sian Roadster’ With Iconic V12 Engine

Who wouldn't like a limited edition, open-top hybrid super Lamborghini sports car engineered with unique technologies and unsurpassed performance? Follow NewsGram on Facebook to...

Google Translate Helps Disseminate Covid-19 info

Google AI and ML translation services are helping health officials communicate with people in languages they understand to disseminate the Covid-19 information, and it...

Walmart to Unveil Subscription Service Like Amazon Prime

The retail giant Walmart is reportedly planning to unveil a new subscription service called Walmart+ that will offer similar benefits to Amazon Prime. The company...

Pradhan Appeals to Indian Students Abroad to Come Back, Innovate India

As the government pushes for a self-reliant India -- 'Atmanirbhar Bharat' -- Union Petroleum and Natural Gas Minister Dharmendra Pradhan has appealed to the...

COVID-19: 77% Businesses Face Drop in Revenue

Around 77 per cent business organisations have witnessed a drop in their revenue as a result of the ongoing COVID-19 crisis, according to a...

Recent Comments