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As the polar ice caps retreat, polar bears could struggle to survive by the end of this century, a number of university researchers wrote in a study published in the Nature Climate Change journal.The study looked at a number of sub-species of polar bears who live in the arctic and how they have adapted to reduced sea ice from 1979 to 2016. The group of researchers said that all but a few sub-species of polar bears will be able to reproduce and survive given projected conditions by 2100.Polar bears use sea ice to capture seals for food. When sea ice erodes for the summer, polar bears fast. Although polar bears are capable of fasting for months, there are limits to how long the bears can go without food.The researchers examined energy needs of polar bears, and that the amount of time polar bears would fast would lengthen to a point that makes it too challenging to survive and reproduce.While resting female polar bears can generally fast for longer periods of time, reproducing females, males and cubs all require shorter fasting periods, the research found.“Avoiding continued sea-ice decline requires aggressively mitigating greenhouse gas rise,” the researchers wrote, “and our results explicitly describe the costs to polar bears of avoiding that mitigation.”To illustrate how much sea ice is being lost, NOAA is projecting that the arctic could have ice-free summers by 2042.Scientists have long discussed the possibility that polar bears could become nearly extinct by the end of the century. Beyond reducing carbon emissions, proposals have included relocating cubs to areas of the Arctic expected to retain higher levels of sea ice have been proposed. To read the full study, click here. 1714

As the polar ice caps retreat, polar bears could struggle to survive by the end of this century, a number of university researchers wrote in a study published in the Nature Climate Change journal.The study looked at a number of sub-species of polar bears who live in the arctic and how they have adapted to reduced sea ice from 1979 to 2016. The group of researchers said that all but a few sub-species of polar bears will be able to reproduce and survive given projected conditions by 2100.Polar bears use sea ice to capture seals for food. When sea ice erodes for the summer, polar bears fast. Although polar bears are capable of fasting for months, there are limits to how long the bears can go without food.The researchers examined energy needs of polar bears, and that the amount of time polar bears would fast would lengthen to a point that makes it too challenging to survive and reproduce.While resting female polar bears can generally fast for longer periods of time, reproducing females, males and cubs all require shorter fasting periods, the research found.“Avoiding continued sea-ice decline requires aggressively mitigating greenhouse gas rise,” the researchers wrote, “and our results explicitly describe the costs to polar bears of avoiding that mitigation.”To illustrate how much sea ice is being lost, NOAA is projecting that the arctic could have ice-free summers by 2042.Scientists have long discussed the possibility that polar bears could become nearly extinct by the end of the century. Beyond reducing carbon emissions, proposals have included relocating cubs to areas of the Arctic expected to retain higher levels of sea ice have been proposed. To read the full study, click here. 1714

ATLANTA, Ga. -- From the motivational speeches of Dr. Martin Luther King Jr. to the spiritual guidance of Mahatma Gandhi, Morehouse College in Atlanta is literally covered with inspirational messages.One phrase, however, has become the mantra for what it takes to become a Morehouse man:“Iron sharpens iron,” said Morehouse College president Dr. David Thomas.Thomas says students and staff at this historically black men’s college have turned struggles into strengths for more than a century.“What we do here is something that doesn’t happen anywhere else on the planet,” he said.The Morehouse campus is quiet this summer with all classes now being taught online. A decision Thomas says may spill over into the fall semester.“I’ve got to do the best job I can for this college,”said Thomas. With staff and salary cuts already happening, the impacts of COVID-19 could last much longer.“When you talk to our students about their experience being here, they will often talk about the power of being in a place where black male excellence is an expectation,” Thomas said. “And that’s hard to communicate in a virtual experience."Morehouse’s 2020 valedictorian, however, was able to express the difficultly of this new reality in simple terms“I think my experience when COVID hit was, I describe it as a little disappointing,” said new graduate Golden Daka.Though Daka is disappointed, he says his class has turned this pandemic into a learning experience.“It let us know that life isn’t not guaranteed and the most precious moments that you cherish could easily be taken away from you,” he said. “So, a lot of people are approaching this as a form of adversity to get stronger an to get better in areas of weakness.”In addition to closing campus, Morehouse College has also canceled all fall sports, which they say is the first Division II HBCU in the country to make that decision.“It’s heartbreaking for me,” Thomas said.Despite the disappointment, Thomas says Morehouse is more focused on academics than athletics, adding that the key to reopening campus is finding a vaccine.“We’re going to have to do that before I think we can declare victory against the virus,” he said.Morehouse now has the chance to play a role in that victory. Its school of medicine was awarded a million government initiative to combat COVID-19 in minority communities, something Thomas believes will help better the world.“Only history will determine it,” he said.A history of excellence, as iron continues to sharpen iron. 2511

Astronauts on board a Soyuz rocket heading to the International Space Station survived an emergency landing following a booster failure, a Russian space official said Thursday."The crew landed," Dmitry Rogozin, director of the Russian space agency Roscosmos, said on Twitter. "All are alive."The rocket was transporting NASA astronaut Nick Hague and cosmonaut Alexey Ovchinin of Roscosmos for a six-month stay on the ISS.NASA said its support teams had reached the location where the crew touched down."The search and rescue teams have reached the Soyuz spacecraft landing site and report that the two crew members are in good condition and are out of the capsule," NASA tweeted.The pair will be taken to the Gagarin Cosmonaut Training Center in Star City, outside the Russian capital, Moscow, NASA said.  818

AVALON, Calif. (AP) — The nonprofit organization that owns a majority of California’s Santa Catalina Island plans to boost eco-tourism by adding more bison to existing herds, recharging a debate over their environmental impacts. The Los Angeles Times reports the Catalina Island Conservancy says there has not been a bison calf born on the island in seven years and the herd size has dwindled to 100. The conservancy board is working to bring two pregnant bison to the island. A biologist says bison herds stay on isolated patches of grass and adding more animals will not result in more bison sightings by eco-tourists. 628

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