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Greenland's massive ice sheets contain enough water to raise global sea levels by 23 feet, and a new study shows that they are melting at a rate "unprecedented" over centuries -- and likely thousands of years.The study, published Thursday in the scientific journal Nature, found that Greenland's ice loss accelerated rapidly in the past two decades after remaining relatively stable since the dawn of the Industrial Revolution in the mid-1800s.Today, Greenland's ice sheets are melting at a rate 50% higher than pre-industrial levels and 33% above 20th-century levels, the scientists found.Greenland's melting glaciers may someday flood your city"What we were able to show is that the melting that Greenland is experiencing today is really unprecedented and off the charts in the longer-term context," said Sarah Das, an associate scientist at the Woods Hole Oceanographic Institution and a co-author of the study.To determine just how fast Greenland's ice is retreating compared with the past, scientists used a drill the size of a traffic light pole to take ice core samples.The samples were taken from sites more than 6,000 feet above sea level, giving the researchers a window into melting on the ice sheet over the past several centuries.In the wake of October's dire report from the UN Intergovernmental Panel on Climate Change warning that civilization has just more than a decade to stave off climate catastrophe, Thursday's report spells more bad news for the planet, especially the millions of people living near the world's oceans.Melting from Greenland's ice sheet is the largest single driver of global sea level rise, which scientists predict could swamp coastal cities and settlements in the coming decades.Eight of the 10 largest cities in the world are near coasts, and 40% to 50% of the global population lives in coastal areas vulnerable to rising seas.The study also found that Greenland's ice loss is driven primarily by warmer summer air and that even small rises in temperature can trigger exponential increases in the ice's melt rate."As the atmosphere continues to warm, melting will outpace that warming and continue to accelerate," said Luke Trusel, an assistant professor at Rowan University and study co-author.According to Trusel, the current thought in the scientific community is that there is a temperature threshold that could trigger a point of no return for the eventual melting of Greenland and Antarctica's ice sheets. And though we don't know exactly what that temperature tipping point is, "what's clear is that the more we warm, the more ice melts.""Once the ice sheets reach these tipping points, it's thought that they'll go into a state of irreversible retreat, so they'll be responding to what we do now for centuries and milliennia into the future," Trusel said.What it's like at the ground zero of climate changeDas stressed that although climate science often focuses on the future impacts of warming, the findings show that the climate is already undergoing hugely significant changes."Climate change -- whether it's in Greenland or in your backyard -- is already here and already happening and already impacting people. It's not something that's coming in the future, and this study really drives home that point," she said.The-CNN-Wire? & ? 2018 Cable News Network, Inc., a Time Warner Company. All rights reserved. 3378

Health officials in Rockland, New York, say that a group who attended a recent party sparking a localized outbreak of coronavirus cases are not cooperating with officials.Health Commissioner Dr. Patricia Schnabel told reporters on Wednesday that a subpoena will be issued in order to force the party attendees to comply with the county’s contact tracing efforts. Dr. Schnabel said that eight subpoenas in total will be issued.Health officials hope to be able to find out who those party attendees have been in contact with amid efforts to minimize the spread of the virus.Dr. Schnabel said that the host, who was symptomatic at the time of the party, infected seven others with the virus. All eight are in their 20s, she said.Dr. Schnabel said that health investigators have been hung up on by infected revelers, or allegedly been lied to.“They deny being at the party even though we have found their name from another party attendee, or a parent provides us with the information” she said. “Many do not answer their cellphones or call back. Sometimes parents answer for their adult children and promise that they have been home consistently when they have not been.Dr. Schnabel said that large gatherings remain an issue."The risk for transmission of the virus is high and very real."The failure to comply with the subpoena is “costly.”“,000 a day,” Dr. Schnabel told reporters.“These civil fines will be declared to those who ignore us or fail to comply,” Dr. Schnabel said. “This is a serious public health issue – a deadly one.”Rockland County Executive Ed Day said that the party attendees “aren’t in trouble,” but agreed that there are serious consequences for not complying with the health commissioner’s investigation.“If you get in the way of a health department investigation, we will take every step necessary to ensure we respond appropriately and we’re talking a serious response,” Day said. 1914

GNC, the retail chain that specializes in vitamin and dietary supplements, has filed for bankruptcy and says it will close up to 1,200 stores.The 85-year-old company is more than billion in debt and was already facing declining sales at brick-and-mortar locations prior to the pandemic. GNC said re-financing plans were in the works earlier this year, but COVID-19 prevented the company from carrying them out.The company says it expects to emerge from bankruptcy in the fall."The Chapter 11 process will allow us to accelerate these strategies and invest in the appropriate areas to evolve in the future, while improving our capital structure and balance sheet," GNC said in a letter to shoppers.According to CNN, GNC reported losses of 0 million in the first quarter after 30 percent of its stores in the U.S. and Canada were forced to close. The company lost million in that same time span in 2019. 919

Having a full kitchen of healthy foods is becoming a luxury. Food pantries across the country are still seeing a dramatic increase in need.“I hope that we eventually get this thing under control, so we can wean everyone off the need for food pantries and shelters like ours, because this is not sustainable,” said Kim Guadagno, CEO of Fulfill, a New Jersey food bank.Guadagno says her organization has seen an increase in demand of almost 2.5 million meals compared to this time last year.Feeding America says at the peak in April, there was a 70% increase in demand, and it’s sustained around 60% higher.Many food banks say they're seeing many families for the first time.“You can always tell someone who has never been to a food pantry before. They come literally right up to this building in tears, because they’ve never had to ask for help before and it’s crushing to all of us,” said Guadagno.Feeding America expects that increased need will continue during the holidays, which is an important time for food banks.“We see increased awareness around hunger and food insecurity around the holidays. It’s a great time for food banks to fundraise. A lot of that fundraising helps sustain them throughout the year,” said Zuani Villarreal, Director of Communications at Feeding America.Food banks are having to purchase more product because of supply chain disruptions.They say right now, cash donations are critical for that and to purchase new supplies like PPE. 1471

GENEVA (AP) — The European Union’s Earth observation program says the ozone hole over Antarctica has swelled to its largest size and deepest level in years.Experts at the Copernicus Atmospheric Monitoring Service say a strong, stable and cold polar vortex has driven the expansion, and have called for greater international efforts to ensure countries abide by an international accord to phase out use of ozone-depleting chemicals.Vincent-Henri Peuch, who heads the service, said in a statement that the ozone hole was “definitely” among the largest in the last 15 years.“With the sunlight returning to the South Pole in the last weeks, we saw continued ozone depletion over the area,” Peuch said. “After the unusually small and short-lived ozone hole in 2019, which was driven by special meteorological conditions, we are registering a rather large one again this year, which confirms that we need to continue enforcing the Montreal Protocol banning emissions of ozone depleting chemicals.”Since the ban on halocarbons, officials say the ozone layer has slowly been recovering and data shows a trend in decreasing area of the ozone hole.Ozone depletion over the Antarctic continent was first noticed in 1985. 1217

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