MIT professor predicts when the world's next mass extinction could occur

22 September, 2017, 19:26 | Author: Patsy Dennis
  • Everyone loves a doomsday prophecy right? US Atomic Scientists Move Doomsday Clock 30 Seconds Closer to Midnight January 26Source:Supplied

"In the past, such periods of instability led to mass extinctions", said Rothman.

Many scientists have concluded that the planet has already entered a sixth mass extinction.

The carbon emissions are mainly responsible for such mass extinctions and have increased significantly in the 19th century. "But how that process plays out remains unknown", the paper said.

He defined "Thresholds of catastrophe" as the limit in the Earth's carbon cycle which is capable of telling how stable the environment is. "It is saying that, if left unchecked, the carbon cycle would move into a realm which would be no longer stable, and would behave in a way that would be hard to predict", Rotham added. Well, it's tricky. Rothman says our current conditions will lead to crossing the threshold suppose the carbon amount in Earth's oceans hits 310 gigatons.

China, Germany highlight importance of Iran nuclear deal in solving NKorea crisis
As recently as Tuesday, administration officials were preparing options for Trump to consider before next month's deadline. But Netanyahu said he also had a simple message for the Iranian people: "You are not our enemy, you are our friends".


He eventually derived a simple mathematical formula based on basic physical principles that relates the critical rate and magnitude of change in the carbon cycle to the timescale that separates fast from slow change.

By the year 2100, about 310 gigatons of carbon will have been added to the oceans - a potential "tipping point" for ecological disaster, according to the study. Of course, this is only one view of how the global scenario may be realized, and Rothman pretends that he has all the answers, but he hopes that even this will force humanity to think.

From this, he constructed a database to assess how much carbon mass was pumped into the world's oceans in each historical event. "In the geologic past, this type of behavior is associated with mass extinction". He plotted both the mass and timescale of each event.

In other words, unless humanity does something to drastically turn around our carbon situation - and there's cause for real optimism on that front, friends - we could lock in a risky extermination.

United States has 'many' military options in Korea crisis: Mattis
North Korea, meanwhile, used the volatile propellant as recently as last Friday when it launched a mid-range missile over Japan. He was referring to an accelerating series of missile tests by North Korea that have defied US and worldwide warnings to stop.


Compared to marine carbon accumulation in the past, Rothman found that marine carbon concentrations are increasing at a much more rapid pace today. But that threshold was crossed four times, corresponding to four of the five worst mass extinctions. It's a system that balances the chemical output of photosynthesis - plants' primary means of making energy - and respiration - the mechanism that animals and other complex life uses. Normally, there is a "leak" in the cycle, in which a small amount of organic carbon sinks to the ocean bottom and, over time, is buried as sediment and sequestered from the rest of the carbon cycle.

The other case occurs on a much shorter timescale, where an vast shift in carbon volumes moving through the carbon cycle happens in the space of say, decades and years.

The best-case scenario projects that humans will add 300 gigatons of carbon to the oceans by 2100, while more than 500 gigatons will be added under the worst-case scenario, far exceeding the critical threshold.

Over the past few hundred years, humans have been dredging up a lot of that excess carbon in the form of fossil fuels, and pumping it back out into the atmosphere.

Mobile, Sprint finally figuring out this merger thing ars_ab.settitle(1171975)
Once again, the fragrance of cost savings worth $30 bln to shareholders has brought T-Mobile US and Sprint into a mating dance. The combination is expected to get close regulatory scrutiny to see whether the wireless market is getting too concentrated.


The findings are reported in Science Advances.

Recommended:

  • Fed Makes No Changes To Dot Plot, Hinting At December Hike

    Fed Makes No Changes To Dot Plot, Hinting At December Hike

    The Fed, as expected, also said it would begin in October to reduce its approximately $4.2 trillion in holdings of U.S. That neutral rate dropped to 2.9 percent in the new forecast, down from 3 percent in the Fed's June forecast.
    Packers will try to offset their injuries

    Packers will try to offset their injuries

    The Bengals might be woeful offensively, but they do have one weapon that could cause Green Bay some trouble, and that's A.J. A week after letting him go, the banged-up Green Bay Packers are bringing back defensive lineman Ricky Jean Francois.
    Obama, ever the campaigner, surfaces to say: GOP wants humans to suffer

    Obama, ever the campaigner, surfaces to say: GOP wants humans to suffer

    He insisted that America is a better place to live now than it ever has been, despite an onslaught of bad news. All because of people who said, "enough" and made a decision to engage and create progress.
  • IOS 11: 15 Hidden Features We Bet You Won't Know!

    IOS 11: 15 Hidden Features We Bet You Won't Know!

    So for instance, if you tape the Wi-Fi button in Control Center , the iPhone, iPad will get disconnected from the current network. The revamped Control Center is one of the best new features of iOS 11 , which Apple recently rolled out to supported devices.
    Pak summons Indian envoy after alleged firing by India

    Pak summons Indian envoy after alleged firing by India

    Pakistani troops had earlier violated ceasefire on the global border in the Jammu district consecutively for four days. It is pertinent to note that despite calls for restraint, India continues to indulge in ceasefire violations.

    DGMOs speak over hotline after India, Pak exchange fire

    According to DG ISPR, Pakistani troops retaliated but India had initiated the attack on Thursday in the village of Charwa. Mortars and automatic weapons were used by the Indian army to target innocent civilians.
  • KB Home Cuts CEO Bonus After Kathy Griffin Rant

    KB Home Cuts CEO Bonus After Kathy Griffin Rant

    Griffin made headlines earlier this year when she posted a photo online showing her holding what was created to look like U.S. Bick claimed he called in the noise complaint after hours of excessive noise from partying at the Mezger home. "Mr.
    Caregiver charged after boy found strapped in vehicle  dies in hospital

    Caregiver charged after boy found strapped in vehicle dies in hospital

    A woman working in the building told CTV News Toronto that the child was found by a cleaning crew visiting the building. All of the car's windows were closed except for the one on the front driver's side, which had been smashed out.
    James Cameron brings back Linda Hamilton in 'Terminator 6'

    James Cameron brings back Linda Hamilton in 'Terminator 6'

    Linda Hamilton will reprise her iconic role as Sarah Connor in the as yet untitled Terminator sequel from producer James Cameron . They've also brought in writers from Sarah Connor Chronicles and Christopher Nolan's Batman trilogy.
  • Suge Knight fuels popular conspiracy theory that Tupac Shakur is still alive

    Suge Knight fuels popular conspiracy theory that Tupac Shakur is still alive

    Suge told them something about Pac's hospital stay after the 1996 shooting just doesn't add up for him. Mean and former Death Row Records executive Suge Knight .
    Greenpeace activists storm massive ship delivering Volkswagen diesel cars to UK

    Greenpeace activists storm massive ship delivering Volkswagen diesel cars to UK

    The group had said the protesters on the ship planned to stay on the vessel until Volkswagen agreed to return the cars to Germany. In a statement, a Volkswagen spokesman said: "We are aware of a protest this morning at the Sheerness port in Kent".
    Brian Cookson loses UCI presidency election

    Brian Cookson loses UCI presidency election

    Once the dust has settled, he may admit he is taking over a UCI in considerably better shape than his predecessor found it. Another area of vulnerability for Cookson was his relationship with the sport's biggest race organiser, French firm ASO.


Popular

Natural disaster leaves hundreds dead, crews combing through rubble in Mexico
Ortiz described the horrifying moments a 7.1 magnitude quake that hit Mexico City on Tuesday . The fact the country was rocked by two earthquakes in 11 days has seismologists puzzled.

Ronaldo, Neymar, Messi nominees for Federation Internationale de Football Association prize for 3rd year
The Portuguese skipper has won the Ballon d'Or four times and the FIFA World Player of the Year award in 2008. Deyna Castellanos, Carli Lloyd and Lieke Martens represent the three finalists for the Best Women's Player.

China's Central Bank Tells Banks To Stop Doing Business With North Korea
He wrote in a tweet, "Today, I announced a new Executive Order with re: to North Korea ". Chinese banks received the document on Monday, the sources said.

Chelsea Handler Suggests Trading Trump for 'More Sane' Kim Jong Un
President Moon Jae-in delivers a keynote speech to the General Assembly at United Nations headquarters in NY on Thursday.

Ezekiel Elliott Offers No Excuses, Accepts Criticism
A week after the Atlanta Falcons barely survived in Chicago, they were dominant at home against the Green Bay Packers . They are also hoping to have rookie cornerback Chidobe Awuzie come back from injury. -Cardinals LT John Wetzel vs.

Defiant to United States concerns, Iran unveils new ballistic missile in military parade
He also said the missile is "more tactical" and smaller in comparison to other ballistic missiles developed by the Defense Ministry.

No need to panic: Zidane calls for calm after Betis loss
Real Betis scored a last minute victor at the Santiago Bernabéu, pushing Real Madrid further adrift of Barcelona in La Liga. Meanwhile, Leganes and Girona fought out a tiresome nil draw in which the visitors had the best of the few chances created.

Sensex drops 232 points on rupee slipping to 4-month low
The Street could have been jittery over the economic prospects after the government announced plans to boost the economy, Moneycontrol said.

Bangladesh to provide birth control kits to Rohingya Muslim refugees
Suu Kyi, 72, said her government had been promoting harmony between the Muslim and largely Buddhist ethnic Rakhine communities. Initial findings would be released within about 10 days, Darusman said. "Please don't treat us as terrorists", he said.

10 best smartphone deals on Amazon and Flipkart today
The customers who pre-book the two phones on Flipkart too can get Rs 10,000 cashback on Citi Bank credit and World debit cards. In terms of optics, the new iPhone 8 has the same 12MP sensor with an f/1.8 aperture with a few software upgrades and OIS.