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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

GOLD COAST, Australia (AP) — Two-time world snowboard champion and Winter Olympian Alex Pullin has drowned while spearfishing on Australia’s Gold Coast.A police spokesman said a 32-year-old man was unresponsive when taken from the water and died despite receiving CPR from lifeguards and emergency treatment from paramedics.The accident happened at Palm Beach around 10:40 a.m. local time Wednesday.Pullin won gold medals in the snowboard cross event at the 2011 and 2013 world championships and was Australia's flag-bearer at the opening ceremony of the 2014 Sochi Olympics. 583

HILLSBOROUGH, Calif. (KGTV) — Yabba, dabba, uh-oh.Neighbors of a San Francisco-area home known for its prehistoric theme are up in arms over the lengths in which its homeowner has gone to cement its look.Known in Hillsborough as "The Flintstone House" because of its similarity to the classic cartoon, has a "yabba dabba doo" sign in its front yard and its rounded, colorful facade looks like Fred and Wilma's homestead.RELATED: Escondido's Heartbreak Hotel clad in 50s-era memoribilia, statuesBut installations on the property have pushed things too far according to neighbors and city leaders, KPIX reports."I don't like the way she did the back yard, you know, when I pass by 280 and look at that, you know, this is Hillsborough, not amusement park," neighbor Kathy Park said. Large brown dinosaurs and statues of Flintstones characters have been added to the property over the last year, according to KPIX.RELATED: A taste of New Zealand moves into University Heights with Kairoa BrewingAttempts by the city to contact the homeowner, Florence Fang, have been unsuccessful."I sent her a letter back in January, which she ignored," Mark Hudak, assistant city attorney, said. "And therefore, we had to file a lawsuit because it was clear she was not going to remove any of this work."Fang has reportedly tried to now apply for permits, but the city wants everything removed to start with a fresh slate. 1411

HONOLULU (AP) -- A 20-year-old woman was arrested for violating Hawaii's quarantine after investigators saw videos of her dancing in a store and dining out.Hawaii officials say Anne Salamanca arrived in Honolulu on July 6 and a few days later was found violating the quarantine.The state mandated a 14-day quarantine on arriving travelers to curb the spread of the coronavirus.KITV reports she's a "social media influencer" who arrived from Manila. The news station reports she apologized on social media and claimed law enforcement told her she could go out if she tested negative.Attorney General Clare Connors says investigators wouldn't say that. 658

FULLERTON (CNS) - Disneyland's economic impact has jumped by 50% since 2013, according to a Cal State Fullerton study released Friday.The theme park had an .5 billion impact on the region and created more than 78,000 jobs as of the most recent fiscal year, according to a study of October 2017 through September of last year. Disneyland visitors spent .5 billion at local businesses outside the theme park, the study showed."Tourism is one of the major and growing segments of the economy as consumers shift more of their spending to leisure activities," said one of the study's leaders, Anil Puril, director of the university's Woods Center for Economic Analysis and Forecasting."Disneyland Resort has shown phenomenal growth," Puri added. "Disneyland Resort also plays an important role in propelling the economy forward through programs like Disney Aspire, a free education program, and other programs offering skills for economic mobility and advancement."Since 2013, Disneyland's job rate has grown at a 7.2% average annually, which is higher than the general job growth of 2.3% in the region, the study showed. Of the 78,000 jobs created by the theme park, about 73% are in Orange County.Disneyland's workers, guests and the company's businesses generated nearly 0 million in annual state and local taxes, which is 6% higher than the average annual growth since 2013. Anaheim pocketed nearly 2 million in taxes. 1435

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