濮阳东方医院咨询预约(濮阳东方医院男科治阳痿靠谱) (今日更新中)

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

Hillary Clinton said Tuesday that President Donald Trump staged a "political rally" at Supreme Court Justice Brett Kavanaugh's ceremonial swearing-in that "further undermined the image and integrity of the court.""What was done last night in the White House was a political rally. It further undermined the image and integrity of the court," Clinton, Trump's Democratic 2016 election opponent, told CNN's Christiane Amanpour in an exclusive interview."And that troubles me greatly. It saddens me. Because our judicial system has been viewed as one of the main pillars of our constitutional government. So I don't know how people are going to react to it. I think, given our divides, it will pretty much fall predictably between those who are for and those who are against," Clinton said. 795

Hours after he returned to rhetoric equating violence from white supremacists with those protesting them, the White House said Thursday that President Donald Trump signed a resolution condemning white supremacy.In the White House statement, Trump said he opposed bigotry in all forms."No matter the color of our skin or our ethnic heritage, we all live under the same laws, we all salute the same great flag, and we are all made by the same almighty God," Trump said.Congress?passed the resolution earlier this week, pushing Trump to put his signature on something expressly singling out white supremacy for condemnation. The White House said in response to the resolution's passage that Trump would "absolutely" sign it, and looked forward to the opportunity. 783

Hosting Thanksgiving dinner can feel like a thankless job if you’ve destroyed your budget to do so. But it doesn’t have to be that way. By setting realistic expectations, shopping strategically and delegating tasks, this can be an affordable meal to prepare. Here’s how to pull it off: 298

HIROSHIMA, Japan (AP) — The city of Hiroshima in western Japan is marking the 75th anniversary of the U.S. atomic bombing.The Aug. 6, 1945, bombing was the world’s first nuclear attack. Three days later, the United States dropped a second atomic bomb on Nagasaki.Japan surrendered on Aug. 15, ending World War II and the Japanese aggression in Asia that lasted nearly half a century.Hiroshima was a major Japanese military hub with factories, military bases and ammunition facilities before the bombing.An estimated 140,000 people, including those with radiation-related injuries and illnesses, died from Aug. 6 through Dec. 31, 1945. That was 40% of Hiroshima’s population at the time. Hiroshima today has 1.2 million residents.Thursday, survivors of the Hiroshima bombing gathered in diminished numbers to mark the anniversary. They urged the world, and their own government, to do more to ban nuclear weapons.The coronavirus meant a small turnout, but the survivors’ message was more urgent than ever.Survivors want younger generations to learn their lessons while they are still around.As a girl, Koko Kondo had a secret mission: Revenge against those who dropped the Aug. 6, 1945, atomic bomb. She has overcome her hatred, as well as humiliation and discrimination.Kondo now is a peace activist following in the footsteps of her father, Rev. Kiyoshi Tanimoto, one of six survivors featured in John Hersey’s book “Hiroshima.” 1437

来源：资阳报