Himalayan glaciers could lose 80% of their volume if global warming not controlled, study finds
Copyright 2023 The Associated Press. All rights reserved Copyright 2023 The Associated Press. All rights reserved Copyright 2019 The Associated Press. All rights reserved. Glaciers are melting at unprecedented rates across the Hindu Kush Himalayan mountain ranges and could lose up to 80% of their current volume this century if greenhouse gas emissions aren't sharply reduced, according to a new report. The report Tuesday from Kathmandu-based International Centre for Integrated Mountain Development warned that flash floods and avalanches would grow more likely in coming years, and that the availability of fresh water would be affected for nearly 2 billion people who live downstream of 12 rivers that originate in the mountains. Ice and snow in the Hindu Kush Himalayan ranges is an important source of water for those rivers, which flow through 16 countries in Asia and provide fresh water to 240 million people in the mountains and anther 1.65 billion downstream. The people living in these mountains who have contributed next to nothing to global warming are at high risk due to climate change, said Amina Maharjan, a migration specialist and one of the reports authors. Current adaptation efforts are wholly insufficient, and we are extremely concerned that without greater support, these communities will be unable to cope. Various earlier reports have found that the cryosphere regions on Earth covered by snow and ice are among the worst affected by climate change. Recent research found that Mount Everest's glaciers, for example, have lost 2,000 years of ice in just the past 30 years. We map out for the first time the linkages between cryosphere change with water, ecosystems and society in this mountain region, Maharjan said. Among the key findings from Tuesday's report are that the Himalayan glaciers disappeared 65% faster since 2010 than in the previous decade and reducing snow cover due to global warming will result in reduced fresh water for people living downstream. The study found that 200 glacier lakes across these mountains are deemed dangerous, and the region could see a significant spike in glacial lake outburst floods by the end of the century. The study found that communities in the mountain regions are being affected by climate change far more than many other parts of the world. It says changes to the glaciers, snow and permafrost of the Hindu Kush Himalayan region driven by global warming are unprecedented and largely irreversible. Effects of climate change are already felt by Himalayan communities sometimes acutely. Earlier this year the Indian mountain town of Joshimath began sinking and residents had to be relocated within days. Access unlimited streaming of movies and TV shows with Amazon Prime Video Sign up now for a 30-day free trial Access unlimited streaming of movies and TV shows with Amazon Prime Video Sign up now for a 30-day free trial Once ice melts in these regions, it's very difficult to put it back to its frozen form, said Pam Pearson, director of the International Cryosphere Climate Initiative, who was not involved with the report. She added, Its like a big ship in the ocean. Once the ice starts going, its very hard to stop. So, with glaciers, especially the big glaciers in the Himalayas, once they start losing mass, thats going to continue for a really long time before it can stabilize. Pearson said it is extremely important for Earth's snow, permafrost and ice to limit warming to the 1.5 degrees Celsius agreed to at the 2015 Paris climate conference. I get the sense that most policymakers don't take the goal seriously but, in the cryosphere, irreversible changes are already happening," she said. ___ Follow APs climate change coverage at https://apnews.com/hub/climate-and-environment ___ Associated Press climate and environmental coverage receives support from several private foundations. See more about APs climate initiative here. The AP is solely responsible for all content. Copyright 2023 The Associated Press. All rights reserved Want to bookmark your favourite articles and stories to read or reference later? Start your Independent Premium subscription today. Log in New to The Independent? Or if you would prefer: Want an ad-free experience? Hi {{indy.fullName}}