The researchers express concern about the impact of such instability on children but warn: (contemporaryfamilies.org)
The journal Geophysical Research Letters details the major lines of evidence causing such instability in the ice sheet - something scientists have been fearing for some time. (natureworldnews.com)
Inversely, teachers who are awarded tenure might be observed as ineffective one, two, and / or three years following, not because their true level (s) of effectiveness change, but because of the error in the estimates that causes such instabilities to occur. (vamboozled.com)