Rice anthropologists spotlight human toll of glacier loss
Peer-Reviewed Publication
Updates every hour. Last Updated: 3-Jul-2025 06:10 ET (3-Jul-2025 10:10 GMT/UTC)
An international study has found that Earth’s glaciers will lose 76% of their 2020 mass under current climate policy pledges made by nations.
Those pledges would lead to a global mean temperature 4.9 degrees Fahrenheit above preindustrial levels.
Consequences of the glacier mass loss include a 9-inch sea level rise, changes in biodiversity and increased natural hazards, the research finds.
Alaska, one of 19 glacier regions designated by the international team, would lose 69% of its glacier mass. Of those regions, which don’t include the Greenland and Antarctic ice sheets, Alaska has the third-highest glacier mass today, at 16,246 gigatons. Only the Antarctic islands/sub-Antarctic islands and northern Arctic Canada have more glacier mass.
Immediate recovery efforts receive the most attention after severe natural disasters, yet new data from researchers at Drexel University and the University of Maryland suggests these climate events often also leave a critical long-term — and often unaddressed — problem in declines in access to health care.
In a paper published in National Science Review, an international team of scientists presents the first global inventory of methane emissions from abandoned oil and gas wells. The study estimates that approximately 4.5 million abandoned wells across 127 countries collectively emitted around 400,000 tonnes of methane in 2022, with over 90% of these emissions originating from unplugged wells. By identifying high-priority wells and accelerating the implementation of targeted well-plugging strategies, global methane emissions from these wells could be reduced by up to 61% by 2050.