My main conclusion from reading the report is this: the phrase ‘climate change’ is now officially meaningless. The report effectively implies that there is no climate change other than what is caused by humans, and that extreme weather events are equivalent to climate change. Any increase in adverse impacts from extreme weather events or sea level rise is caused by humans. Possible scenarios of future climate change depend only on emissions scenarios that are translated into warming by climate models that produce far more warming than has recently been observed.
In nearly 30 years of teaching, I can’t recall another teaching innovation that has aroused such interest and rapid adoption among college faculty as the “flipped” class. Somewhat belatedly, we are now seeing studies to test whether the flipped class is effective at the college level, and how it affects student learning. For advocates and early adopters of the flip, the early report on Slate from ongoing studies at Harvey Mudd are disappointing. The flipped class appears to have no significant effect, for better or worse, on student learning.
This past week, there have been several essays and one debate that provide some good perspectives on what we don’t know about climate change, and whether we should be alarmed.
It is gratifying to see leading scientists and thinkers ‘stepping off the reservation’ to provide interpretations of climate science and thoughts on how we should respond, that differ from the IPCC assessments and the more alarmist interpretations.