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Arctic and Antarctic Sea Ice hit its lowest extent ever recorded by Satellites: Scientists

The ice floating on top of the Arctic Ocean and surrounding seas shrinks in a seasonal cycle from mid-March until mid-September

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Ice Loss in Antarctic Sea, VOA

Washington, March 23, 2017: While Arctic Sea ice reached this year a record low wintertime maximum extent, sea ice around Antarctica also hit its lowest extent ever recorded by satellites at the end of summer in the Southern Hemisphere, scientists have said.

In February this year, the combined Arctic and Antarctic sea ice extent was at its lowest point since satellites began to continuously measure sea ice in 1979, said scientists at NASA and the NASA-supported National Snow and Ice Data Center (NSIDC) in Boulder, Colorado.

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Total polar sea ice covered 16.21 million square km, which is two million square km less than the average global minimum extent for 1981-2010 — the equivalent of having lost a chunk of sea ice larger than Mexico, the study said.

“It is tempting to say that the record low we are seeing this year is global warming finally catching up with Antarctica,” Walt Meier, a sea ice scientist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, said in a NASA release on Wednesday.

“However, this might just be an extreme case of pushing the envelope of year-to-year variability. We’ll need to have several more years of data to be able to say there has been a significant change in the trend,” Meier added.

The ice floating on top of the Arctic Ocean and surrounding seas shrinks in a seasonal cycle from mid-March until mid-September.

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As the Arctic temperatures drop in the autumn and winter, the ice cover grows again until it reaches its yearly maximum extent, typically in March.

The ring of sea ice around the Antarctic continent behaves in a similar manner, with the calendar flipped –it usually reaches its maximum in September and its minimum in February.

This winter, a combination of warmer-than-average temperatures, winds unfavourable to ice expansion, and a series of storms halted sea ice growth in the Arctic, the scientists said.

This year’s maximum extent, reached on March 7 at 14.42 million square kilometres, is 97,00 square kilometres below the previous record low, which occurred in 2015, and 1.22 million square kilometres smaller than the average maximum extent for 1981-2010, according to the scientists. (IANS)

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Students Worldwide Skip School to Protest Government’s Failure against Global Warming

They're angry at their elders, and they're not taking it sitting down

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global warming, climate change
Students from different institutions hold placards and banners as they participate in a climate protest in New Delhi, India, March 15, 2019. VOA

They’re angry at their elders, and they’re not taking it sitting down.

Students worldwide are skipping class Friday to take to the streets to protest their governments’ failure to take sufficient action against global warming.

The coordinated “school strikes,” being held from the South Pacific to the edge of the Arctic Circle, were inspired by 16-year-old Swedish activist Greta Thunberg, who began holding solitary demonstrations outside the Swedish parliament last year.

Since then, the weekly protests have snowballed from a handful of cities to hundreds, driven by social media-savvy students and dramatic headlines about the impact of climate change.

climate change, global warming
Students attend a protest ralley of the “Friday For Future Movement” in Berlin, Germany, March 15, 2019. VOA

Thunberg, who was recently nominated for the Nobel Peace Prize, was cheered for her blunt message to leaders at the World Economic Forum in Switzerland this year, when she told them: “I want you to panic. I want you to feel the fear I feel every day.”

Friday’s rallies are expected to be one of the biggest international actions yet. Protests were under way or planned in cities in more than 100 countries, including Hong Kong; New Delhi; Wellington, New Zealand; and Oulo, Finland.

In Berlin some 10,000 protesters, most of them young students, gathered in a downtown square, waving signs with slogans such as “There is no planet B” and “Climate Protection Report Card: F” before a march through the capital’s government quarter. The march was to end with a demonstration outside Chancellor Angela Merkel’s office.

Organizer Carla Reemtsma, a 20-year-old university student, said social media had been key in reaching people directly to coordinate the massive protests in so many different locations, noting that she was in 50 WhatsApp groups and fielding some 30,000 messages a day.

“It’s really important that people are getting together all over the world, because it’s affecting us all,” she said.

Critics, supporters

Some politicians have criticized the students, suggesting they should be spending their time in school, not on the streets.

“One can’t expect children and young people to see all of the global connections, what’s technically reasonable and economically possible,” said the head of Germany’s pro-business Free Democratic Party, Christian Lindner. “That’s a matter for professionals.”

climate change, global warming
Students hold signs during a rally for global climate strike for future in Seoul, South Korea, March 15, 2019. VOA

But scientists have backed the protests, with thousands signing petitions in support of the students in Britain, Finland and Germany.

“We are the professionals and we’re saying the young generation is right,” said Volker Quaschning, a professor of engineering at Berlin’s University of Applied Sciences.

“We should be incredibly grateful and appreciative of their bravery,” said Quaschning, one of more than 23,000 German-speaking scientists to sign a letter of support this week. “Because in a sense, it’s incredibly brave not to go to school for once.”

Scientists have warned for decades that current levels of greenhouse gas emissions are unsustainable, so far with little effect. In 2015, world leaders agreed in Paris to a goal of keeping the Earth’s global temperature rise by the end of the century well below 2 degrees Celsius (3.6 degrees Fahrenheit).

Yet at present, the world is on track for an increase of 4 degrees Celsius, which experts say would have far-reaching consequences for life on the planet.

“As a doctor, I can say it makes a big difference whether you’ve got a fever of 41 degrees Celsius (105.8 Fahrenheit) or 43 C (109.4 F),” said Eckart von Hirschhausen, a German scientist who signed the call supporting striking students. “One of those is compatible with life, the other isn’t.”

Other action

German Chancellor Angela Merkel and French President Emmanuel Macron have publicly welcomed the student protests, even as their policies have been criticized as too limited by environmental activists.

In France, activist groups launched legal action this week for failing to do enough to fight climate change, citing a similar successful effort in the Netherlands.

climate change, global warming
Hundreds of schoolchildren take part in a climate protest in Hong Kong, March 15, 2019. VOA

In Germany, environmental groups and experts have attacked government plans to continue using coal and natural gas for decades to come. Activists say that countries like Germany should fully “decarbonize” by 2040, giving less-advanced nations a bit more time to wean themselves off fossil fuels while still meeting the Paris goal globally.

Other changes needed to curb greenhouse gas emissions include ramping up renewable energy production, reining in over-consumption culture now spreading beyond the industrialized West and changing diets, experts say.

“The fight against climate change is going to be uncomfortable, in parts, and we need to have a society-wide discussion about this,” said Quaschning.

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That conversation is likely to get louder, with several U.S. presidential hopefuls planning to campaign on climate change.

Luisa Neubauer, one of the Berlin group organizing Fridays for Future, said politicians should take note of the young.

“For the European elections in May, we’re urging everyone to think about whether they want to give their vote to a party that doesn’t have a plan for the future and the climate,” she said. (VOA)