Greenland's fragile ice sheet

+ sex testing and Olympic sports; enduring grief 10 years after Ferguson US Edition - Today's top story: Ancient poppy seeds and willow wood offer clues to the Greenland ice sheet's last meltdown and a glimpse into a warmer future [View in browser]( US Edition | 11 August 2024 [The Conversation] [The Conversation]( Happy Sunday − and welcome to the best of The Conversation U.S. Here are a few of our recently published stories: - [The real ‘Big Bang’ of country music: How Vernon Dalhart’s 1924 breakthrough recordings launched a genre]( - [The problem with pronatalism: Pushing baby booms to boost economic growth amounts to a Ponzi scheme]( If Greenland’s massive ice sheet melts, humanity is in big trouble. Eventually the seas would rise more than 23 feet, putting large swaths of many major cities such as Boston, New York and Mumbai underwater. And we just got more news revealing how fragile Greenland’s ice sheet is. In a new analysis, environmental scientists Paul Bierman and Halley Mastro [found additional evidence that the ice sheet melted]( more recently than scientists had previously believed. The findings “demonstrate that Greenland’s ice is vulnerable to melting at atmospheric carbon dioxide concentrations lower than today,” they explain in one of the articles last week that most engaged readers. The story also happens to be very well illustrated. “Human-caused climate change is on pace to warm the Arctic and Greenland beyond temperatures they have experienced for millions of years,” they write. 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