Human-induced Global Warming—A Little, or a Lot?

In Climate Change, Environment, The Big Picture by E. Calvin Beisner

Cornwall Alliance Senior Fellow Roy W. Spencer’s monthly graph of global lower atmosphere temperature anomaly for March 2017 shows we’re still cooling from the super-El Nino that so warmed 2016.

Track your eye straight left from the farthest-right point and you’ll see that there’s little change from the anomalies of roughly 2001–2006, and of course we had significant downs and ups in between.

John Christy in his February 2017 Global Temperature Report (go to http://www.nsstc.uah.edu/climate/ and then download the PDF) reports “Global climate trend since Nov. 16, 1978: +0.12 C per decade.” When he updates that through March, it will be a TINY bit lower to reflect the drop in anomaly from February to March, but not much.

Meanwhile, IPCC’s 102 CMIP-5 climate models on average predict warming of +0.274 C per decade (from Christy’s testimony last Friday before the House Science, Space, and Technology Committee).

So the models predict warming 2.28 times as rapid as our satellite observations show. Anybody for thinking AGW might be, though real, of lower magnitude than the IPCC says?

Dr. Beisner is Founder and National Spokesman of The Cornwall Alliance; former Associate Professor of Historical Theology & Social Ethics, at Knox Theological Seminary, and of Interdisciplinary Studies, at Covenant College; and author of “Where Garden Meets Wilderness: Evangelical Entry into the Environmental Debate” and “Prospects for Growth: A Biblical View of Population, Resources, and the Future.”