Maybe these Arctic squirrels aren’t invasive after all?

An investigation into bird populations on the Alaskan island of Chirikof has turned up evidence that the Arctic ground squirrel might not be an invasive species after all.

When Catherine West, a research assistant professor in Boston University’s archaeology department, arrived on the small island in the Gulf of Alaska, she planned to study how the island’s bird population had changed over time. More specifically, West wanted to see what native Alaskans’ food waste could tell her about the island’s bird population, and vice versa. She started to excavate the island’s middens (the trash dumps of ancient people) to see what the animal remains in there could tell her. She kept bringing up bones from birds, whales, seals, and, surprisingly, a lot of ground squirrels.

“It was kind of an accident,” says West. “We didn’t know that they were going to be there.”

How is rapid warming in the Arctic affecting animals adapted to cold? Scientists track muskoxen to find out

By , THE CONVERSATION

 A wildlife biologist is using many techniques to find out how animals adapt to the cold.

Our Earth has unimaginable diversity, from seascapes 8,000 meters below the ocean’s surface to landscapes 8,000 meters above it. Its physical beauty comes in inconceivable living varieties. Some mammals lay eggs; some lizards are legless. Bats catch fish. Birds catch bats. Wood frogs in Alaska survive through winter even as two-thirds of their body tissues turn to ice.

Form follows location

Foregrounder | Finland wants to show the world what it means to be Arctic

Perhaps the biggest (in more ways than one) example of what Finns like to call ‘snow how’ is the country’s prowess as a designer, builder and operater of icebreakers.

National legislation requiring 20 of Finland’s 60 ports to remain open year-round means the country has had plenty of domestic motivation for sustaining the industry. Emerging international interest in Arctic shipping has opened a broader market. Now, the technology developed in its home waters is increasingly finding its way to traditional icebreakers as well as ice-strengthened and ice-breaking vessels that sail under other countries’ flags.

Arctic Temperatures Rise; Ice Cover Sets a New Low

 

By Karandeep Singh

A new research states that the Arctic region has once again set a new record of rising temperatures, which is also lowering the ice cover this season. This is the third time this season since November 2016 that the region is experiencing such high temperatures.

“If you look at where sea-ice extent is right now, we’re at a record low, compared to the remainder of the satellite record that goes back to 1979,” said Mark Serreze, a senior research scientist at Snow and Ice Data Center in Colorado. He and his team reported that the Antarctic sea-ice cover in January this year was just above 5 million square miles. The number is a whole 100,000 square miles than what is was in January last year and is half a million square miles less than the average for January for the past 38 years.

The researchers also confirmed that the temperature rise was witnessed especially in the Arctic regions located above 80 degrees north latitude. The temperature in those regions was about 20-degree Celsius, or 68-degree Fahrenheit, higher than the average temperature during that time of the year.

Plan To Refreeze The Arctic Will Cost $500B

By Jaswin S. Singh

Ice in the arctic is rapidly decreasing as global warming is at its alarming rate. Some scientists have proposed to refreeze the arctic and that move will cost $500 billion.

Physicist Steven Desch and his team have a plan to solve the problem. Their solution is to build wind-powered pumps over the Arctic ice cap. His team is from the Arizona State University and they have laid it all out. According to The Guardian, the pumps will be used during winter. They would be pumping out water to the surface of the ice, and the water will freeze.

The method, which will cost $500 billion, will create 10 million pimps and it would add one meter of ice to the Arctic's two to three meters melting ice caps. Steven Desch said in a newspaper interview that thicker ice would be great as it would last longer. Melting of ice caps during the summer will no longer be a problem because of the extra ice the pumps will give.

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