A Spot Check of Global Warming

Last week I asked if there were any good weather omens to look for. I raised a question originally posed by Roger A. Pielke Jr., a professor of environmental studies at the University of Colorado: Are there any indicators in the next 1, 5 or 10 years that would be inconsistent with the consensus view on climate change?

Lab readers contributed some ideas (and much invective), but I think the most useful one came from a climate scientist who wrote directly to Dr. Pielke and suggested comparing what has happened since 2000 with the predictions made by the Intergovernmental Panel on Climate Change.