EnvironmentWhere is the iceberg that broke off Antarctica and is it a threat? An iceberg more than four times the size of New York City began drifting again after being stuck on the seafloor for nearly 40 years 51¶¯Âþ
Environment'Doomsday' glacier in Antarctica isn't as vulnerable as feared Thwaites glacier in Antarctica would cause massive sea level rise if it melts completely, but models suggest the break-up of the ice shelf in front of it won't make it flow faster 51¶¯Âþ