Every September, as the melt season on the Greenland ice sheet fizzles out, I and my colleague Martin Stendel do the same thing: we sit down with a year's worth of daily surface mass balance maps and weather charts from the Polar Portal, work out how the ice sheet fared, and write it up as a guest post for Carbon Brief. Our latest one, the 11th in the series covers September 2025 to August 2026 and this year's headline is one I'd rather not be celebrating: 2025-26 was the 30th consecutive year that Greenland lost more ice than it gained....