Way back in June, John Christy and I called 2015 as being the warmest year on record … in the surface thermometer data. Given the strong El Nino in progress, on top of the official thermometer data warming trend, this seemed pretty obvious. Of course, everyone has their opinions regarding how good the thermometer temperature trends are, with periodic adjustments that almost always make the present warmer or the past colder. But I’m not going there today …. Instead, I’m going to talk about our … [Read more...]
It’s Okay to Laugh at COP21!
Honest, you can't make these things up! Here's a screen capture from WattsUpwithThat.com on November 30, first day of COP21, the UN climate summit in Paris. Here's what the blurry (because screen captured) text says: Laughable: COP21 and Comedy Central share a logo style Anthony Watts, 20 hours ago, November 30, 2015 From the truth is stranger than fiction department. I was sent a photo showing hte UN Logo being installed at the COP21 conference in Paris. Source: Inquirer.net where they say … [Read more...]
Does the “Precautionary Principle” Favor Fighting “Climate Change”?
Proponents of efforts to mitigate climate change often appeal to the “Precautionary Principle”—Principle #15 of the Rio Declaration in 1992: “In order to protect the environment, the precautionary approach shall be widely applied by States according to their capabilities … [W]here there are threats of serious or irreversible damage, lack of full scientific certainty shall not be used as a reason for postponing cost-effective measures to prevent environmental degradation.” In light of that, we … [Read more...]
Climate Scientists are Steadily Reducing Estimates of Warming from CO2
Among climate scientists specializing in climate sensitivity there is a clear trend toward lower and lower estimates of it, as the chart below shows. Why? Because the empirical measurements of GAT have fallen so much lower than model-generated predictions. In the chart, the dates are dates of publication (bottom axis) of peer-reviewed studies making estimates of climate sensitivity measured in degrees Celsius (left axis). ECS denotes “equilibrium climate sensitivity,” warming predicted in … [Read more...]
Low Climate Sensitivity Makes Fighting Global Warming Unwise
To achieve the IPCC’s 3˚ “best estimate” of warming from doubled CO2 since the Industrial Revolution by the end of this century, GAT would have to rise another 2.593˚ in the remaining 63.5 years, a rate of 0.41˚ per decade, which is 3.7 times as fast as the observed rate so far. To achieve the 2˚ lower bound claimed for over 20 years, GAT would have to rise two-and-a-quarter times as fast as the observed rate. Even to reach the 1.5˚ the IPCC now claims is the lower bound, GAT would have to rise … [Read more...]
What’s Wrong with Science Behind Global Warmings Fears?
Bad science is the foundation of fears of dangerous, manmade global warming and therefore of any policy recommended to reduce it. If you’re like many Americans, you find that position surprising, because you’ve heard that many national academies of science, the United Nations Intergovernmental Panel on Climate Change (IPCC), and an alleged overwhelming consensus of the world’s scientists say the opposite. So why should you judge that the skeptics are right and all those others are … [Read more...]
Reasons to Sign An Open Letter on Climate Change to the American People and their Leaders: An Appeal to Christian Academics
Four-part Series: Part 1; Part 2; Part 3; Part 4 Burke, VA, November 18, 2015 Greetings in the name of our Lord and Savior Jesus Christ—Friend of sinners, Friend of the poor. We’re writing to ask you to join us in doing something that will take courage, so we want you to be well informed, first about who we are, and second about the subject on which we’re asking you to take a stand. Along with nearly 400 others—including many climate scientists, physicists, mathematicians, economists … [Read more...]
Climate Change, Climate Policy, and the Precautionary Principle: An Appeal to Christian College Faculty Members
Four-part Series: Part 1; Part 2; Part 3; Part 4 Burke, VA, July 29, 2015 Greetings in Christ’s name! I’m David R. Legates, Professor of Climatology and Geography at the University of Delaware, a Senior Fellow of The Cornwall Alliance for the Stewardship of Creation, and a Christian committed to Biblically sound environmental stewardship and the reduction of poverty around the world. Proponents of efforts to mitigate climate change often appeal to the “Precautionary Principle”—Principle #15 of … [Read more...]
Bad Science Makes Bad Policy: Why Christian Educators Should Care about Climate Policy
Four-part Series: Part 1; Part 2; Part 3; Part 4 Burke, VA, July 15, 2015 “Bad science makes bad policy.” That’s what Robert Stewart, Ph.D., Professor and Chair, Department of Science, Technology, and Mathematics, Regent University, said when asked why he had endorsed “An Open Letter on Climate Change to the People, their Local Representatives, the State Legislatures and Governors, the Congress, and the President of the United States of America.” That Open Letter is reprinted below, and you … [Read more...]
An Invitation to Christian College Faculty to Sign an Open Letter to Protect the Poor in America and Around the World
Four-part Series: Part 1; Part 2; Part 3; Part 4 Burke, VA, July 9, 2015 I’m writing to you about a very serious matter, so I beg for your patience as I explain it. Rest assured from the start, though, that I’m not asking you for money. I’m privileged to coordinate a network of about 60 evangelical scholars—roughly a third theologians, a third natural scientists, and a third economists and policy experts—all dedicated to applying excellent theology, ethics, science, and economics to public … [Read more...]
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