News / Science & Technology

Greenland Ice Island Prompts Global Warming Debate

A massive ice island has broken off the coast of Greenland.
A massive ice island has broken off the coast of Greenland.

Multimedia

Carla Babb

Heat waves, droughts and floods have been wreaking havoc across the globe in recent weeks, and now scientists say a 250 square kilometer island of ice has broken off from a glacier in Greenland.  Some are blaming this huge chunk of ice on global warming, while others say such breaks in the Arctic ice are a normal occurrence.

The ice island that broke off from Greenland's Petermann glacier is more than four times the size of the New York City's Manhattan Island. Jim Scianna of the U.S. National Ice Center, tells VOA breakage like this is fairly routine in the Arctic.

"There's about 10-40,000 of them that occur during the year in the Arctic region.  What's unusual about this one is the size," he said.

And the size of the massive iceberg has some people worried, like Greenpeace activist Melanie Duchin. "I think this is more evidence to add to the growing body of knowledge that shows that climate change is happening," he said.

Scientists say they cannot confirm whether the rip in the ice was caused by global warming because of a lack of information. They only started keeping records on the sea water around the glacier in 2003.

And ocean science professor Andreas Muenchow says years of data on the glacier itself show that after this month's event, the mass of ice is still, on average, discharging about the same amount of water it usually does - some 600 million cubic meters a year, or about 220,000 Olympic-sized swimming pools. "Even a big piece like this over 50 years is not that significant.  It's just the normal rate," he said.

Muenchow warns people not to jump to conclusions. "An event like this, this specific event, all flags go immediately up, 'Oh, let's explain this by global warming.' I cannot support that," he said.

Nevertheless, Congressman Ed Markey, the Chair of the House committee on global warming, says the overall evidence is disturbing. "Scientists have warned us that climate change will result in increased melting of glaciers and polar ice, more frequent and intense heat waves and wildfires, and increased drought and flooding," he said.

And people are experiencing extreme weather all over the world, from wildfires in the U.S. state of California, to droughts in Russia, to flooding in Pakistan.

But if this big break in the Greenland glacier IS caused by global warming, how would that affect us? "When they start to disintegrate and pieces break off, they start to move faster and they drain even more ice faster from the Greenland ice sheet in the sea, and that is what produces sea level rise," said Duchin.

A sea level rise that could slowly erode shorelines across the globe. But those watching the Arctic changes at the ice center say there is no need to worry at the moment.

"This is about 250 square kilometers in area, the world's oceans make up about 361 million square kilometers, so you're talking still a very very very small percentage," said Scianna.

Scientist will continue to monitor the ice island's path as it slides closer to the ocean. But they say only time will tell what damage, if any, will come from it.

You May Like

IS Militants Release 49 Turkish Hostages

Turkey's state-run Anadolu news agency reports that no ransom was paid and no conditions accepted for the hostages' release; few details of the release are known More

Photogallery IS Attacks Send Thousands of Syrian Kurds Fleeing to Turkey

Syrian Observatory for Human Rights says more than 300 Kurdish fighters crossed into Syria from Turkey to defend a Kurdish area from attack by the Islamic militants More

Video Sierra Leone's Ebola Lockdown Continues

Thousands of health workers are going door to door in the West African country of 6 million, informing people of how to avoid Ebola, handing out soap More

This forum has been closed.
Comments
     
There are no comments in this forum. Be first and add one

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
Fears Ebola Outbreak ‘Beyond Our Capability to Contain’i
X
Jeff Seldin
September 20, 2014 10:28 PM
Each day brings with it new warnings about the deadly Ebola outbreak already blamed for killing more than 2,600 people across West Africa. And while countries and international organizations like the United Nations are starting to come through on promises of help for those most affected, the unprecedented speed with which the virus has spread is raising questions about the international response. VOA's Jeff Seldin has more from Washington.
Video

Video Fears Ebola Outbreak ‘Beyond Our Capability to Contain’

Each day brings with it new warnings about the deadly Ebola outbreak already blamed for killing more than 2,600 people across West Africa. And while countries and international organizations like the United Nations are starting to come through on promises of help for those most affected, the unprecedented speed with which the virus has spread is raising questions about the international response. VOA's Jeff Seldin has more from Washington.
Video

Video Iran, World Powers Seek Progress in Nuclear Talks

Iran and the five permanent members of the U.N. Security Council plus Germany, known as the P5 + 1, have started a new round of talks on Iran's nuclear program. VOA State Department correspondent Pam Dockins reports that as the negotiations take place in New York, a U.S. envoy is questioning Iran's commitment to peaceful nuclear activity.
Video

Video Obama Goes to UN With Islamic State, Ebola on Agenda

President Obama goes to the United Nations General Assembly to rally nations to support a coalition against Islamic State militants in Iraq and Syria. He also will look for nations to back his plan to fight the Ebola virus in West Africa. As VOA White House correspondent Luis Ramirez reports, Obama’s efforts reflect new moves by the U.S. administration to take a leading role in addressing world crises.
Video

Video Migrants Caught in No-Man's Land Called Calais

The deaths of hundreds of migrants in the Mediterranean this week has only recast the spotlight on the perils of reaching Europe. And for those forunate enough to reach a place like Calais, France, only find that their problems aren't over. Lisa Bryant has the story.
Video

Video Westgate Siege Anniversary Brings Back Painful Memories

One year after it happened, the survivors of the terror attack on Nairobi's Westgate Shopping Mall still cannot shake the images of that tragic incident. For VOA, Mohammed Yusuf tells the story of victims still waiting for the answer to the question 'how could this happen?'
Video

Video Militant Assault in Syria Displaces Thousands of Kurds

A major assault by Islamic State militants on Kurds in Syria has sent a wave of new refugees to the Turkish border, where they were stopped by Turkish border security. Turkey is already hosting about 700,000 Syrian refugees who fled the civil war between the government and the opposition. But the government in Ankara has a history of strained relations with Turkey's Kurdish minority. Zlatica Hoke reports Turkey is asking for international help.
Video

Video Whaling Summit Votes to Uphold Ban on Japan Whale Hunt

The International Whaling Commission, meeting in Slovenia, has voted to uphold a court ruling banning Japan from hunting whales in the Antarctic Ocean. Conservationists hailed the ruling as a victory, but Tokyo says it will submit revised plans for a whale hunt in 2015. Henry Ridgwell reports from London.
Video

Video A Dinosaur Fit for Land and Water

Residents and tourists in Washington D.C. can now examine a life-size replica of an unusual dinosaur that lived almost a hundred million years ago in northern Africa. Scientists say studying the behemoth named Spinosaurus helps them better understand how some prehistoric animals adapted to life on land and in water. The Spinosaurus replica is on display at the National Geographic museum. VOA’s George Putic has more.
Video

Video Iraqi Kurdistan Church Helps Christian Children Cope find shelter in churches in the Kurdish capital, Irbil

In the past six weeks, tens of thousands of Iraqi Christians have been forced to flee their homes by Islamic State militants and find shelter in churches in the Kurdish capital, Irbil. Despite U.S. airstrikes in the region, the prospect of people returning home is still very low and concerns are starting to grow over the impact this is having on the displaced youth. Sebastian Meyer reports from Irbil on how one church is coping.


Carnage and mayhem are part of daily life in northern Nigeria, the result of a terror campaign by the Islamist group Boko Haram. Fears are growing that Nigeria’s government may not know how to counter it, and may be making things worse. More

AppleAndroid