Read the Arctic Report Card beyond the headlines
Follow a headline into its definition, table, calendar, and method, from daily sea ice minima to the limits of an observing-network assessment.
Greenland's dark ice has more than one cause
Snow retreat, glacier algae, particles, and ice texture all influence reflectivity. Separate the observed darkening from its cause and melt consequence.
A glacier front is not a balance sheet
Why a glacier's edge, speed, surface height, and total mass can tell different stories, with Greenland's 2025 budget as a grounded example.
Measuring a glacier in footsteps
Ablation stakes, mass balance, the 2025 Greenland result, and the patient work of repeated measurement.