[added comments] While carbon dioxide is a “greenhouse” gas and it does absorb energy in some infrared wavelength bands, many scientists will argue that its affect on average global temperatures have been considerably exaggerated by the proponents of catastrophic anthropogenic global warming. In order to derive effects extreme enough to be considered catastrophic, they have had to rely on strong positive feedback resulting in much larger effects than CO2 could produce without any feedbacks. Many prestigious scientists disagree with that and some even suspect the feedback is not only much less than estimated, but may even be negative.
One must always consider that contrary to that which is frequently stated by climate activists/alarmists, the debate is never over in science.
Skeptical modelers show a more realistic view of past, present, and future climate change that follows mostly natural temperature patterns. These models indicate a more benign climate outcome than do the IPCC models. Since they are able to bound the problem of cause and effect, they dramatically reduce the wide uncertainty range of expected global temperature increase due to atmospheric CO2 concentration.
When Alarmists say “climate change is real!” I think yes it is, but “real . . . what?” My perhaps flippant answer to that question is real normal, real natural . . . among a few. I think human caused climate change is real small. These are some of the real issues that I want to explore here.
The first point is that the Intergovernmental Panel on Climate Change (UN IPCC) climate models are actually not real at all. In fact based on the real data, they are turning out to be fairy tales. Based on the real data, more realistic models are now being developed by very qualified groups and individuals. The improvement in modeling results over those by the IPCC appear Continue reading “A Brief Look at Climate Models Developed by Skeptics”
Supposed threats to coastal military installations ignore science
By Bob Endlich
“Data from CO2 measuring stations and from the Sewell’s Point and all other tide gages may clearly refute these assertions, but NPR and its colleagues will not change their minds.”
“The Sewell’s Point tide gage shows that the rate of sea level rise has not changed since the gage was installed in 1927, and is unchanged from our use of fossil fuels. It’s time to base our policies on sound science, instead of manmade global warming fiction and scare stories.”
Anti-fossil fuel SCC relies on garbage models, ignores carbon benefits and hurts the poor
“If you could pick just one thing to reduce poverty, by far you would pick energy,” Bill Gates has said. “Access to energy is absolutely fundamental in the struggle against poverty,” World Bank VP Rachel Kyte and Nobel Prize Laureate Dr. Amartya Sen agree.
Due to his respected position, as climate scientist at the University of California, San Diego Institution of Oceanography, Richard C.J. Somerville’s recent “Cold comfort” column was published in newspapers throughout the country.
[This was originally posted in 2013 on Judith Curry’s site and was authored by CASF member, Steve McGee. We have included it here as part of the CASF Archive. Posted on December 26, 2013 |169 Comments]
by Steve McGee
In science, one likes to have more examples than theories. – Dusan Djuric
Those words, spoken whimsically about cosmology, apply to climate science as well. The theory of the sensitivity of climate to the radiative forcing imposed by a doubling of carbon dioxide suffers from a lack of observed, repeatable examples. Paleo-climate studies carry with them the uncertainty of the proxy data and unmeasured assumptions on which they are based. Studies regarding the forcing from volcanoes and other transient events may not be repeatable for some time. However, Lindzen et. al. 1995 (link ) and Ramanathan and Inamdar in Frontiers of Climate Modeling, 2006 (link ) each have pointed out that the seasonal variation of earth temperature is quite large and possibly a surrogate for climate change. With this in mind, I set out to determine how the seasonal variation Continue reading “Seasonal Radiative Response”