Catlin alarmists put up a largely data-free "Ice Report"

From this "Ice Report 14.4.09":

One further consideration, when interpreting the ice thickness measurements made by the CAS team, is navigational bias. The team systematically seeks out flatter ice because it is easier to travel over and camp on. Typically, the surface of first‐year ice floes is flatter than that of multi‐year ice floes. However, satellite imagery of their route suggests that navigational bias is not a factor in this case, and that in fact they have been surrounded by ice with a consistent age (from 82°30’N northwards – the high‐resolution radar imagery does not cover the start near 82°N).