This September 2017 photo provided by researcher Brian Menounos shows the Klinaklini glacier in British Columbia, Canada. The glacier and the adjacent icefield has lost nearly 16 billion tons (14.5 billion metric tons) of snow and ice since 2000, with 10.7 billion tons of that (9.8 billion metric tons) of that since 2010, Menounos says. And the rate of loss accelerated over the last five years of the study. (Brian Menounos via AP)
By Seth Borenstein
Glaciers are melting faster, losing 31% more snow and ice per year than they did 15 years earlier, according to three-dimensional satellite measurements of all the world’s mountain glaciers.
Scientists blame human-caused climate change.
Using 20 years of recently declassified satellite data, scientists calculated that the world’s 220,000 mountain glaciers are losing more than 328 billion tons (298 billion metric tons) of ice and snow per year since 2015, according to a study in Wednesday’s journal Nature. That’s enough melt flowing into the world’s rising oceans to put Switzerland under almost 24 feet (7.2 meters) of water each year.
The annual melt rate from 2015 to 2019 is 78 billion more tons (71 billion metric tons) a year than it was from 2000 to 2004. Global thinning rates, different than volume of water lost, doubled in the last 20 years and “that’s enormous,” said Romain Hugonnet, a glaciologist at ETH Zurich and the University of Toulouse in France who led the study.
Half the world’s glacial loss is coming from the United States and Canada.
Alaska’s melt rates are “among the highest on the planet," with the Columbia glacier retreating about 115 feet (35 meters) a year, Hugonnet said.
Almost all the world’s glaciers are melting, even ones in Tibet that used to be stable, the study found. Except for a few in Iceland and Scandinavia that are fed by increased precipitation, the melt rates are accelerating around the world.
The near-uniform melting “mirrors the global increase in temperature” and is from the burning of coal, oil and gas, Hugonnet said. Some smaller glaciers are disappearing entirely. Two years ago, scientists, activists and government officials in Iceland held a funeral for a small glacier.
“Ten years ago, we were saying that the glaciers are the indicator of climate change, but now actually they’ve become a memorial of the climate crisis,” said World Glacier Monitoring Service Director Michael Zemp, who wasn’t part of the study.
The study is the first to use this 3D satellite imagery to examine all of Earth’s glaciers not connected to ice sheets in Greenland and Antarctic. Past studies either only used a fraction of the glaciers or estimated the loss of Earth’s glaciers using gravity measurements from orbit. Those gravity readings have large margins of error and aren't as useful, Zemp said.
Ohio State University’s Lonnie Thompson said the new study painted an “alarming picture."
Shrinking glaciers are a problem for millions of people who rely on seasonal glacial melt for daily water and rapid melting can cause deadly outbursts from glacial lakes in places like India, Hugonnet said.
But the largest threat is sea level rise. The world’s oceans are already rising because warm water expands and because of melting ice sheets in Greenland and Antarctica, but glaciers are responsible for 21% of sea level rise, more than the ice sheets, the study said. The ice sheets are larger longer term threats for sea level rise.
“It’s becoming increasingly clear that sea level rise is going to be a bigger and bigger problem as we move through the 21st century,” said National Snow and Ice Data Center Director Mark Serreze.
The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Department of Science Education. The AP is solely responsible for all content.
The FDA has granted emergency use authorization to Pfizer's pill to treat covid-19. The treatment, called Paxlovid, is the first antiviral covid-19 pill that people can take at home.
Pfizer says the pill can reduce the risk of severe illness by 90 percent and is intended for people at high risk for severe disease, including those over 65, people with obesity, diabetes, or a weakened immune system. Professor Peter Pitts, Founder, Center for Medicine in the Public Interest & Former FDA Associate joined Wake Up with Cheddar to discuss.
Ahead of a four day week for the markets due to the upcoming Christmas holiday, investors hoping for a quiet end to the year, or even a Santa Claus rally, may not be in luck. Investors are still digesting the latest from the Fed regarding a quicker than expected taper, as well as ever increasing blow back as the Omicron variant spreads. Octavio Marenzi, CEO of Opimas LLC, explains why the markets have been so volatile ever since the emergence of the latest variant and what to expect going forward into 2022.
Carlo and Baker cover the heartening news on the Covid front ahead of the holiday, plus President Biden punting student loan repayments again, a new space telescope and Love, Hate, Ate: Christmas Eve Eve Edition!
Pfizer, one of the makers of a currently available COVID-19 vaccine, has taken another critical step forward in combatting the pandemic by getting regulatory approval for Paxlovid, a pill treatment rather than IV or injection as others have been. Dr. Purvi Parikh, an immunologist with the Allergy and Asthma Network, spoke to Cheddar about the ramifications of the authorization. "This is huge, especially because we know early treatment does keep people out of the hospital, especially with this antiviral," Parikh said. "The fact that people can start a regimen at home so they don't have to leave and further expose others is a big breakthrough." She also explained how the drug is a combination of two antiviral medications that are not without its risks but should be safe over the short term.
This year's worldwide semiconductor shortage limited the supply of everything from new cars to smartphones; and now, many in the chip industry expect the shortage to continue deep into 2022, and maybe even 2023. Semiconductor senior research analyst for Robert W. Baird & Co., Tristan Gerra, joins Cheddar News' Closing Bell to discuss.
Direct health care company Nomi Health recently raised $110 million in a Series A round. Nomi Health lets public and private organizations directly purchase healthcare at reduced costs, and pay providers in real-time. It also delivers healthcare directly to under-served communities via its fleet of mobile care units, which the company says is the largest in the country. Nomi Health says its mission is to improve the health care experience for all Americans. Nomi Health CEO Mark Newman joined Cheddar News' Closing Bell to discuss.
The airline industry says it is contending with staff shortages that threaten to hamper operations amid the COVID resurgence, andDelta Airlines CEO Ed Bastian called on the CDC to revise its guidance for vaccinated workers who test positive from a 10-day quarantine to just five. Chuck Liberman, chief investment officer and managing partner at Advisors Capital Management LLC, joined Cheddar to talk about the current guidance on isolation and why he believes the omicron variant calls for more relaxed guidance given its reportedly mild symptoms.
The boys discuss President Biden's plans to send out free rapid tests as the testing supply chain starts to buckle ahead of the holidays. Also, why aren't Americans having more babies, and The Matrix returns.
NASA is launching its new generation of space telescopes just before Christmas. The James Webb Space Telescope, set to launch on December 24th, will succeed the Hubble space telescope as the world's most powerful complex space observatory. The project has been 30 years in the making and is one of the most highly anticipated space science missions of the 21st century. Klaus Pontoppidan, astronomer and JWST Project Scientist at the Space Telescope Science Institute joined Cheddar's Opening Bell to discuss.
With Omicron becoming the dominant COVID-19 variant in the U.S., President Joe Biden announced that he will make 500 million rapid tests available to Americans in January 2022. Cheddar News speaks with Dr. Shereef Elnahal, President and CEO of University Hospital why testing is key to combatting the spread of the virus.
