Sunday, January 29, 2012

A hugely important piece on global warming (or the lack thereof)

I read something the other day that was confirmation of a belief I have expressed many times in this blog--global warming is NOT something we should allow people to use to ruin our economy. The Wall Street Journal had an article entitled "No Need to Panic About Global Warming," which was signed by sixteen well-respected scientists in fields dealing with climate and related endeavors.

We're in a time of great political activity. The article points out a key thing: candidates should understand that the oft-repeated claim that nearly all scientists demand that something dramatic be done to stop global warming is not true. In fact, a large and growing number of distinguished scientists and engineers do not agree that drastic actions on global warming are needed.

Here's proof of their claim. In September, Nobel Prize-winning physicist Ivar Giaever, a supporter of President Obama in the last election, publicly resigned from the American Physical Society (APS) with a letter that begins: "I did not renew [my membership] because I cannot live with the [APS policy] statement: 'The evidence is incontrovertible: Global warming is occurring. If no mitigating actions are taken, significant disruptions in the Earth's physical and ecological systems, social systems, security and human health are likely to occur. We must reduce emissions of greenhouse gases beginning now.' In the APS it is OK to discuss whether the mass of the proton changes over time and how a multi-universe behaves, but the evidence of global warming is incontrovertible?"

Dr. Giaever is not alone, and he's no crank. In spite of a multidecade international campaign to enforce the message that increasing amounts of the "pollutant" carbon dioxide will destroy civilization, large numbers of scientists, many very prominent, share his opinions. And what's interesting is that his position is not growing weaker. The number of scientific "heretics" is growing with each passing year. The reason is a collection of stubborn scientific facts.

Perhaps the most inconvenient fact is the lack of global warming for well over 10 years now, according to the article. This is known to the warming establishment, as one can see from the 2009 "Climategate" email of climate scientist Kevin Trenberth: "The fact is that we can't account for the lack of warming at the moment and it is a travesty that we can't."

How has this hugely important factor (no global warming over the past 10 years) been missed? Computer models have greatly exaggerated how much warming additional CO2 can cause. Faced with this embarrassment, those promoting alarm have shifted their drumbeat from warming to weather extremes, to enable anything unusual that happens in our chaotic climate to be ascribed to CO2. Nice maneuver, right?

The article points out something important that's often missed, and it's so simple. CO2 is not a pollutant. CO2 is a colorless and odorless gas, exhaled at high concentrations by each of us, and a key component of the biosphere's life cycle. Plants do so much better with more CO2 that greenhouse operators often increase the CO2 concentrations by factors of three or four to get better growth. The scientists who write this piece say that better plant varieties, chemical fertilizers and agricultural management contributed to the great increase in agricultural yields of the past century, but part of the increase almost certainly came from additional CO2 in the atmosphere.

I'm going to stop here even though this is only about half of the Journal piece. I think this is so important that I'd like everyone reading this to take another look and share this with your friends. I'll take on the other half in the next blog.

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