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Scientists prepare for year-long expedition to Arctic center

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Scientists prepare for year-long expedition to Arctic center
News

News

Scientists prepare for year-long expedition to Arctic center

2019-09-20 14:18 Last Updated At:14:20

Researchers from more than a dozen nations prepared Friday to launch the biggest and most complex expedition ever attempted in the central Arctic — a yearlong journey through the ice they hope will improve the scientific models that underpin our understanding of climate change.

The 140-million euro ($158 million) expedition will see 600 scientists from 19 countries including Germany, the United States, Britain, France, Russia and China work together in one of the most inhospitable regions of the planet.

"The Arctic is the epicenter of global climate change," said Markus Rex of Germany's Alfred Wegener Institute for Polar and Ocean Research, who will lead the expedition. "At the same time the Arctic is the region of the planet where we understand the climate system least."

The German icebreaker and research vessel Polarstern at shore in Tromso, Norway, Wednesday Sept. 19, 2019. Scientists from more than a dozen nations are preparing to launch the biggest and most complex research expedition ever attempted in the central Arctic. About 100 researchers will set sail Friday from Tromso, Norway, aboard the German icebreaker Polarstern in an effort to understand how climate change is affecting the Arctic and regions beyond. (Rune Stoltz BertinussenNTB Scanpix via AP)

The German icebreaker and research vessel Polarstern at shore in Tromso, Norway, Wednesday Sept. 19, 2019. Scientists from more than a dozen nations are preparing to launch the biggest and most complex research expedition ever attempted in the central Arctic. About 100 researchers will set sail Friday from Tromso, Norway, aboard the German icebreaker Polarstern in an effort to understand how climate change is affecting the Arctic and regions beyond. (Rune Stoltz BertinussenNTB Scanpix via AP)

Packed full of scientific equipment, the German icebreaker RV Polarstern will leave the port of Tromsoe in northern Norway accompanied by a Russian vessel to search for a suitably large ice floe on which to anchor and set up base.

As the days get shorter and the sea freezes around it, the Polarstern will slowly drift off on its own toward the North Pole while rotating teams of 100 scientists spend two months each conducting research on the ice.

Stefanie Arndt, a sea ice physicist who will join the mission in mid-February, said the unique advantage of this expedition compared with others is the fact that researchers will be able to observe processes in the Arctic across an entire cycle of seasons.

"What's particularly interesting is the transition from winter to spring," she said, a time when the ice is normally too thick for ships to reach the Central Arctic.

Recording changes in the density, size and type of snow will help scientists better understand the flows of energy in the Arctic.

"For example, how much light the snow reflects back into the atmosphere, how much it absorbs and how much light reaches the upper ocean," said Arndt. "This has big implications for the ecosystem."

Energy from light affects algae growth and ocean temperatures, which in turn influence how much sea ice melts from below.

Understanding these and other complex processes occurring in the Arctic is essential for the increasingly sophisticated computer models scientists use to predict weather and climate. Experts believe that any disruption to the Arctic's delicate cycle of freeze-and-thaw will be felt farther south, though it's still not clear how.

Recent changes in the jet stream — a current of air that circles and insulates the Arctic like a giant thermos — have allowed warm, moist winds from low latitudes to move north. At the same time, chilly blasts of Arctic air — the dreaded polar vortices — have brought deep freeze conditions to the continental U.S. and Europe.

Concerns about global warming have spread far beyond the scientific community in recent years. The expedition starts on the same day as global climate protests and ahead of a U.N. climate summit in New York next week.

Rex, the expedition head, said the cooperation between scientists from many different countries stands in contrast to the geostrategic jostling that big powers have started engaging in as the Arctic, with its untapped riches, begins to open up to exploration.

He put the fact that Germany, hitherto a second-league player in the Arctic, is leading the expedition down to the country's technical and logistical expertise.

"We're doing it because we can, and nobody else can do it," said Rex.

MOSAiC mission: https://www.mosaic-expedition.org/

PARIS (AP) — French President Emmanuel Macron warned Thursday that Europe could “die” if it fails to build its own robust defense as Russia’s war in Ukraine rages on, or if it fails to undertake major trade and economic reforms to compete with China and the U.S.

Macron urged Europeans to become more ambitious in a fast-changing world to face the challenges of war, fierce trade competition, energy scarcity, climate change and increasing authoritarianism.

In a nearly two-hour speech at Sorbonne University in Paris, Macron said that the continent is divided and “too slow and lacks ambition” at a time when the 27-member European Union needs to become a superpower, defend its own borders and speak with one voice if it wants to survive and thrive.

“Our Europe today is mortal,” Macron said. “It can die and that depends solely on our choices,” he added. He called on people to make those choices now because, “it’s today that Europe is between war and peace.”

Russia's full-scale invasion of Ukraine, now in its third year, is an existential threat and Europe isn't armed enough to defend itself when “confronted by a power like Russia that has no inhibitions, no limits,” Macron said.

‘Our ability to ensure our security is at stake," Macron said. “Russia mustn’t be allowed to win.”

Europe now has the “good fortune” of having the Biden administration’s commitment to supporting Ukraine, Macron said. But, in a year of key elections around Europe, in the U.S. and elsewhere, support may fragment or disappear entirely, he added.

“Europe must become capable of defending its interests, with its allies by our side whenever they are willing, and alone if necessary,” Macron said.

Strong armies, a European rapid intervention program and force, tanks, a missile shield and other weapons, produced in Europe, will need the support of “a joint diplomatic force that will speak with one voice and build bridges with Africa and Latin America,” the French leader said.

“Only then will Europe show that it's not a United States’ lap dog, and that it also knows how to talk to other regions of the world,” he said.

France has been a firm supporter of Ukraine in its fight against Russian aggression, and Macron has often clashed with other Western leaders as he has insisted that Europe must stand by the country at any cost. The French president alarmed European leaders by saying recently that sending Western troops into Ukraine to shore up its defenses shouldn’t be ruled out.

Referring to trade practices of China and the U.S., Macron said “the two world powers have decided not to respect the rules of global trade” by shoring up protections and subsides while Europe’s industry remains open and is stuck in overregulation.

“Let’s do the same, we are in competition,” Macron said.

“We must buy faster, we must produce more and we must buy more that is made in Europe. That is key,” Macron said.

Thursday's speech came less than two months before a pivotal European Parliament election.

Macron, an avid advocate of a united and assertive Europe, also rallied support for his centrist Renaissance party before the June 6-9 vote as far-right parties lead the moderate coalitions in the polls. He called for safeguarding democratic values as the “authoritarian model” was becoming “more popular” across the continent.

The war in Ukraine and immigration are top priorities for European Union voters, according to polls. Far-right parties have gained support by criticizing Macron’s government policies on both issues. Macron acknowledged divisions on immigration policies, including on asylum and deportation rules for those who have arrived to Europe illegally.

He emphasized the need for an effective response and Europe-wide coordination for curbing illegal immigration, closer cooperation with immigrants' countries of origin and a unified, relentless fight against human traffickers.

Macron criticized the idea of striking an agreement, as Britain as done, with countries in Africa and elsewhere to transfer immigrants there.

“This is a betrayal of our values that ultimately leads us to dependency on other counties,” Macron said.

The British government earlier this week approved a law allowing the deportation of some migrants who enter the country illegally to Rwanda.

Macron lost his majority in France’s most influential house of parliament, the National Assembly, after the 2022 election to the far-left coalition and the far-right National Rally party.

The social situation in France remains tense as Paris prepares to host the Olympic Games this summer, amid protests from teachers and police officers, and farmer demonstrations in recent weeks. The protests follow huge rallies last year against Macron’s ultimately successful proposal to increase the retirement age from 62 to 64.

Barbara Surk reported from Nice, France. Lorne Cook contributed to this report from Brussels.

French President Emmanuel Macron delivers a speech on Europe in the amphitheater of the Sorbonne University, Thursday, April 25 in Paris. 2024. French President Emmanuel Macron will outline his vision for Europe as a more assertive global power at the backdrop of war in Ukraine, security, and economic challenges in a speech ahead of pivotal election for the European Parliament in June. (Christophe Petit Tesson, Pool via AP)

French President Emmanuel Macron delivers a speech on Europe in the amphitheater of the Sorbonne University, Thursday, April 25 in Paris. 2024. French President Emmanuel Macron will outline his vision for Europe as a more assertive global power at the backdrop of war in Ukraine, security, and economic challenges in a speech ahead of pivotal election for the European Parliament in June. (Christophe Petit Tesson, Pool via AP)

French President Emmanuel Macron delivers a speech on Europe in the amphitheater of the Sorbonne University, Thursday, April 25 in Paris. 2024. French President Emmanuel Macron will outline his vision for Europe as a more assertive global power at the backdrop of war in Ukraine, security, and economic challenges in a speech ahead of pivotal election for the European Parliament in June. (Christophe Petit Tesson, Pool via AP)

French President Emmanuel Macron delivers a speech on Europe in the amphitheater of the Sorbonne University, Thursday, April 25 in Paris. 2024. French President Emmanuel Macron will outline his vision for Europe as a more assertive global power at the backdrop of war in Ukraine, security, and economic challenges in a speech ahead of pivotal election for the European Parliament in June. (Christophe Petit Tesson, Pool via AP)

French President Emmanuel Macron delivers a speech on Europe in the amphitheater of the Sorbonne University, Thursday, April 25 in Paris. 2024. French President Emmanuel Macron will outline his vision for Europe as a more assertive global power at the backdrop of war in Ukraine, security, and economic challenges in a speech ahead of pivotal election for the European Parliament in June. (Christophe Petit Tesson, Pool via AP)

French President Emmanuel Macron delivers a speech on Europe in the amphitheater of the Sorbonne University, Thursday, April 25 in Paris. 2024. French President Emmanuel Macron will outline his vision for Europe as a more assertive global power at the backdrop of war in Ukraine, security, and economic challenges in a speech ahead of pivotal election for the European Parliament in June. (Christophe Petit Tesson, Pool via AP)

French President Emmanuel Macron delivers a speech on Europe in the amphitheater of the Sorbonne University, Thursday, April 25 in Paris. 2024. French President Emmanuel Macron will outline his vision for Europe as a more assertive global power at the backdrop of war in Ukraine, security, and economic challenges in a speech ahead of pivotal election for the European Parliament in June. (Christophe Petit Tesson, Pool via AP)

French President Emmanuel Macron delivers a speech on Europe in the amphitheater of the Sorbonne University, Thursday, April 25 in Paris. 2024. French President Emmanuel Macron will outline his vision for Europe as a more assertive global power at the backdrop of war in Ukraine, security, and economic challenges in a speech ahead of pivotal election for the European Parliament in June. (Christophe Petit Tesson, Pool via AP)

French President Emmanuel Macron delivers a speech on Europe in the amphitheater of the Sorbonne University, Thursday, April 25 in Paris. 2024. French President Emmanuel Macron will outline his vision for Europe as a more assertive global power at the backdrop of war in Ukraine, security, and economic challenges in a speech ahead of pivotal election for the European Parliament in June. (Christophe Petit Tesson, Pool via AP)

French President Emmanuel Macron delivers a speech on Europe in the amphitheater of the Sorbonne University, Thursday, April 25 in Paris. 2024. French President Emmanuel Macron will outline his vision for Europe as a more assertive global power at the backdrop of war in Ukraine, security, and economic challenges in a speech ahead of pivotal election for the European Parliament in June. (Christophe Petit Tesson, Pool via AP)

French President Emmanuel Macron delivers a speech on Europe in the amphitheater of the Sorbonne University, Thursday, April 25 in Paris. 2024. French President Emmanuel Macron will outline his vision for Europe as a more assertive global power at the backdrop of war in Ukraine, security, and economic challenges in a speech ahead of pivotal election for the European Parliament in June. (Christophe Petit Tesson, Pool via AP)

French President Emmanuel Macron delivers a speech on Europe in the amphitheater of the Sorbonne University, Thursday, April 25 in Paris. 2024. French President Emmanuel Macron will outline his vision for Europe as a more assertive global power at the backdrop of war in Ukraine, security, and economic challenges in a speech ahead of pivotal election for the European Parliament in June. (Christophe Petit Tesson, Pool via AP)

French President Emmanuel Macron delivers a speech on Europe in the amphitheater of the Sorbonne University, Thursday, April 25 in Paris. 2024. French President Emmanuel Macron will outline his vision for Europe as a more assertive global power at the backdrop of war in Ukraine, security, and economic challenges in a speech ahead of pivotal election for the European Parliament in June. (Christophe Petit Tesson, Pool via AP)

French President Emmanuel Macron delivers a speech on Europe in the amphitheater of the Sorbonne University, Thursday, April 25 in Paris. 2024. French President Emmanuel Macron will outline his vision for Europe as a more assertive global power at the backdrop of war in Ukraine, security, and economic challenges in a speech ahead of pivotal election for the European Parliament in June. (Christophe Petit Tesson, Pool via AP)

French President Emmanuel Macron delivers a speech on Europe in the amphitheater of the Sorbonne University, Thursday, April 25 in Paris. 2024. French President Emmanuel Macron will outline his vision for Europe as a more assertive global power at the backdrop of war in Ukraine, security, and economic challenges in a speech ahead of pivotal election for the European Parliament in June. (Christophe Petit Tesson, Pool via AP)

French President Emmanuel Macron delivers a speech on Europe in the amphitheater of the Sorbonne University, Thursday, April 25 in Paris. 2024. French President Emmanuel Macron will outline his vision for Europe as a more assertive global power at the backdrop of war in Ukraine, security, and economic challenges in a speech ahead of pivotal election for the European Parliament in June. (Christophe Petit Tesson, Pool via AP)

French President Emmanuel Macron arrives to deliver a speech on Europe in the amphitheater of the Sorbonne University, Thursday, April 25 in Paris. 2024. French President Emmanuel Macron will outline his vision for Europe as a more assertive global power at the backdrop of war in Ukraine, security, and economic challenges in a speech ahead of pivotal election for the European Parliament in June. (Christophe Petit Tesson, Pool via AP)

French President Emmanuel Macron arrives to deliver a speech on Europe in the amphitheater of the Sorbonne University, Thursday, April 25 in Paris. 2024. French President Emmanuel Macron will outline his vision for Europe as a more assertive global power at the backdrop of war in Ukraine, security, and economic challenges in a speech ahead of pivotal election for the European Parliament in June. (Christophe Petit Tesson, Pool via AP)

French President Emmanuel Macron delivers a speech on Europe in the amphitheater of the Sorbonne University, Thursday, April 25 in Paris. 2024. French President Emmanuel Macron will outline his vision for Europe as a more assertive global power at the backdrop of war in Ukraine, security, and economic challenges in a speech ahead of pivotal election for the European Parliament in June. (Christophe Petit Tesson, Pool via AP)

French President Emmanuel Macron delivers a speech on Europe in the amphitheater of the Sorbonne University, Thursday, April 25 in Paris. 2024. French President Emmanuel Macron will outline his vision for Europe as a more assertive global power at the backdrop of war in Ukraine, security, and economic challenges in a speech ahead of pivotal election for the European Parliament in June. (Christophe Petit Tesson, Pool via AP)

French President Emmanuel Macron delivers a speech on Europe in the amphitheater of the Sorbonne University, Thursday, April 25 in Paris. 2024. French President Emmanuel Macron will outline his vision for Europe as a more assertive global power at the backdrop of war in Ukraine, security, and economic challenges in a speech ahead of pivotal election for the European Parliament in June. (Christophe Petit Tesson, Pool via AP)

French President Emmanuel Macron delivers a speech on Europe in the amphitheater of the Sorbonne University, Thursday, April 25 in Paris. 2024. French President Emmanuel Macron will outline his vision for Europe as a more assertive global power at the backdrop of war in Ukraine, security, and economic challenges in a speech ahead of pivotal election for the European Parliament in June. (Christophe Petit Tesson, Pool via AP)

French President Emmanuel Macron speaks during a media conference at an EU summit in Brussels, Thursday, April 18, 2024. European Union leaders on Wednesday debated a new "European Competitiveness Deal" aimed at helping the 27-nation bloc close the gap with Chinese and American rivals amid fears the region's industries will otherwise be left behind for good. (AP Photo/Omar Havana)

French President Emmanuel Macron speaks during a media conference at an EU summit in Brussels, Thursday, April 18, 2024. European Union leaders on Wednesday debated a new "European Competitiveness Deal" aimed at helping the 27-nation bloc close the gap with Chinese and American rivals amid fears the region's industries will otherwise be left behind for good. (AP Photo/Omar Havana)

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