Moss Changes Demonstrate Impact of Global Warming in Antarctic Peninsula

Green Island moss bank with icebergs. SWNSMore

Green Island moss bank with icebergs. SWNSMore

The Arctic is warming the fastest, but Antarctica is not far behind, with annual temperatures gaining nearly one degree Fahrenheit (half degree Celsius) each decade since the 1950s.

They analysed moss bank cores, well preserved in the cold conditions, from an area spanning about 400 miles.

Careful analysis of those five cores going back 150 years showed increased biological activity as the Peninsula has warmed in the last 50 years.

"This is another indicator that Antarctica is moving backward in geologic time - which makes sense, considering atmospheric Carbon dioxide levels have already risen to levels that the hasn't seen since the Pliocene, 3 million years ago, when the Antarctic ice sheet was smaller, and sea-levels were higher", said Rob DeConto, a glaciologist at the University of MA who was not involved in the study, according to The Washington Post. No matter where you look, moss is growing 4-5 times faster than it used to, due to the warming climate.

Dr Matt Amesbury, of the University of Exeter, said: 'Temperature increases over roughly the past half century on the Antarctic Peninsula have had a dramatic effect on moss banks growing in the region.

One of the scientist from Exeter University who took part in the study, Dr. Matt Amesbury said, "What we found were these large, dramatic changes occurring in all of our cores".

The results echo findings reported by the team in 2013 based on cores from the southernmost known moss bank, found on Alexander Island to the west of the Antarctic Peninsula.

Dayton signs Real ID bill
The compromise bill passed the House on a 120-11 vote late Wednesday afternoon, then passed the Senate on a 57-8 vote. Paul, the governor says the only way to get the job done is force residents to pay more when buying a vehicle .

"I don't see too much of a problem with regional moss species", said Hodgson "and there are also two grasses that have been found". Global warming is turning the white landscape green. They are going to study the severity of the effect before global warming was enhanced by human activities.

"If greenhouse gas emissions continue unchecked, Antarctica will head even further back in geologic time...perhaps the peninsula will even become forested again someday, like it was during the greenhouse climates of the Cretaceous and Eocene, when the continent was ice free", DeConto continued by email.

"The conclusions and the results that we've seen show the response of these moss banks to climate change have been pervasive across the whole of the region", Amesbury told CBC News in a phone interview.

"The likelihood of this happening is very much an uncertainty, but remains a very real possibility, which is understandably concerning", said Thomas Roland, a co-author of the study also from the University of Exeter.

Plant life only exists on about 0.3 percent of Antarctica, but the new findings suggested "major changes in the biology and landscape of this iconic region" under future warming, according to the study.

The sensitivity of mosses' rate of growth in response to past temperature increases suggests that terrestrial ecosystems of the Antarctic Peninsula will continue to experience rapid change with future warming.

Recommended News

  • Gap Q1 earnings rise to 0.36 dollar, reaffirms FY17 outlook

    Gap Q1 earnings rise to 0.36 dollar, reaffirms FY17 outlook

    On 5/18/2016 announced a quarterly dividend of $0.23 5.32% with an ex dividend date of 7/1/2016 which will be payable on 7/6/2016. During its last trading session, Stock traded with the total exchanged volume of 7.15 million shares.
    Goldie Hawn says forgiveness is important because 'men are men'

    Goldie Hawn says forgiveness is important because 'men are men'

    As you might have guessed, however, if you're going to see Snatched because of Goldie Hawn , you're likely to be disappointed. Unfortunately, her follow-up flick goes off the tracks completely on a one-way ticket to Razzieville. "If it even exists".
    Free Dunkin' Donuts frozen coffee on Friday

    Free Dunkin' Donuts frozen coffee on Friday

    Hashtags for the promotion include #coffee, #beattheheat, #DunkinDonuts, #PerksWeek and #DDPerks. The filter is only available today and can be unlocked by going to a DNKN location.
  • Boko Haram bombers attack University of Maiduguri again

    Boko Haram bombers attack University of Maiduguri again

    The bombers targeted the BOT Female hostel and another one exploded an IED near the School of Veterinary Medicine. He said that the remains of the three suicide bombers were evacuated to the Specialist Hospital in Maiduguri.
    3 dead, 19 rescued, more still feared trapped in Lagos building collapse

    3 dead, 19 rescued, more still feared trapped in Lagos building collapse

    Around 5pm, the National Emergency Management Agency said 16 people had been rescued from the rubble of the building. The emergency workers have cordoned off the area and are evacuating the injured to the Ilesa General Hospital.

    Protesters Beaten in 'Brutal Attack' During Turkish President's United States Visit

    Video shows Erdogan supporters and bodyguards flooding through the police line and beating protesters on American soil. Serdar Kılıç was summoned to the State Department , a senior State Department official told CNN .
  • Showers possible Friday, National Weather Service says

    Showers possible Friday, National Weather Service says

    My hope is that the rain times out in a way that gives us a chance to enjoy some sunshine and seasonal temperatures. This shouldn't be an all day steady rain , but we could have a couple of periods of rain and thunder.
    USA  seeks joint effort to ensure Venezuela head ends violence

    USA seeks joint effort to ensure Venezuela head ends violence

    A water canon sprays government protesters trying to reach the Interior Ministry, in Caracas, Venezuela , Thursday, May 18, 2017. Less than a month ago Capriles was barred by the Maduro administration from running for elected office for the next 15 years.
    Shadow Brokers teases more Windows exploits and cyberespionage data

    Shadow Brokers teases more Windows exploits and cyberespionage data

    They're planning to release more NSA hacking tools in June, offering access to them to anyone willing to pay. It adds, "Each month peoples can be paying membership fee, then getting members only data dump each month".
  • United States  extends sanctions relief under Iran nuclear deal

    United States extends sanctions relief under Iran nuclear deal

    But the USA also announced new unrelated sanctions in a bid to show it wasn't letting Tehran off the hook. Acting Assistant Secretary of State for Near Eastern Affairs Stuart Jones said in a statement .

    What Analysts Have to Say About American Eagle Outfitters (NYSE:AEO)?

    Zurcher Kantonalbank Zurich Cantonalbank raised its position in shares of American Eagle Outfitters by 58.4% in the first quarter. COPYRIGHT VIOLATION NOTICE: This report was originally published by Markets Daily and is the sole property of of Markets Daily.
    Trump dubs himself as 'worst-treated' politician in history

    Trump dubs himself as 'worst-treated' politician in history

    He extolled Coast Guard duties ranging from interdiction of drug smuggling to patrols of the inner-coastal waterways. Trump said he did not get elected to serve the Washington media or special interests. "We are doing a lot of that".

We are pleased to provide this opportunity to share information, experiences and observations about what's in the news.
Some of the comments may be reprinted elsewhere in the site or in the newspaper.
Thank you for taking the time to offer your thoughts.