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...]
Models vs. Observations: Plotting a Conspiracy?
John Christy and I received an email today from Marcel Crok, who presented our satellite observations-vs-models graphs to the Dutch version of the American Physical Society (APS). He said there was considerable push-back about the way we plot the data…not from the society itself, but from global warming activist bloggers. I’ve heard these objections before, and mostly ignored them as uninformed and lame, since I’ve never heard one from an actual climate scientist. But apparently it’s … [Read more...]
The Dangerous Linkage of Government and Science—Ike Was Right
President Dwight D. Eisenhower was a great man, a true lover of liberty, and very suspicious of the power of government at the same time that he recognized its necessity. Millions of Americans would benefit enormously from reading his Farewell Address. Most have heard of the "military-industrial complex" but don't know that it was Eisenhower who warned of it. Very few know that in the same speech he warned of the twin dangers of government dominance in scientific research and of a … [Read more...]
Freeman Dyson, World’s Top Physicist, Calls Out Obama, and Supports Cornwall Alliance Open Letter
Why did one of the world's top physicists—ever—sign the Cornwall Alliance for the Stewardship of Creation's Open Letter to Pope Francis on Climate Change, which challenges climate alarmism, though he's a liberal, a Democrat, likes President Obama, and has a strong background in climate science? My latest article at Townhall.com explains. His reasons for signing that are also good reasons to sign our petition, Forget 'Climate Change', Energy Empowers the Poor! … [Read more...]
Bernie Sanders Said What About Climate Change?
What's wrong with Democratic Presidential candidate and Vermont Senator Bernie Sanders's claim that climate change is the No. 1 threat to national security and could leave the world uninhabitable? My latest article in ChristianPost.com explains. Greener on the Other Side: Climate Models Agree, Nature is Wrong! … [Read more...]
Climate McCarthyism Alive and Well in France
France Télévisions’ chief weather forecaster, Philippe Verdier, boldly told the world in his new book Climat Investigation that the IPCC and other climate alarmists are guilty of “taking the world hostage” to bad science, bad economics, and bad politics. It didn’t take long for the axe to fall. France Télévisions, a government-run station, put him on “forced holiday” as punishment. According to the UK Telegraph, “unions at France Television called for Mr Verdier to be fired, but that Delphine … [Read more...]
What the Dems said about climate change
The money quote on climate change in the first Democratic presidential "debate" was Senator Bernie Sanders's response to moderator Anderson Cooper's question, "what is the greatest national security threat to the United States?" "The scientific community is telling us," Sanders said, "that if we do not address the global crisis of climate change, transform our energy system away from fossil fuel to sustainable energy, the planet that we’re going to be leaving our kids and our grandchildren may … [Read more...]
“The Pause” Remains 18 Years 8 Months Despite Strong El Niño
Each month when RSS (Remote Sensing Systems) updates its global average temperature data, Lord Christopher Monckton calculates how far back one can go in the RSS record without showing a positive trend, i.e., how long "the pause" is. It's been lengthening for several years and as of the end of August had reached 18 years and 8 months. Now, with a strong El Niño developing in the Pacific, the calculation yields a new starting point---not January of 1997 but February. We might say we've hit a … [Read more...]
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