When it comes to power, density is the key. Energy density. The reason that solar power, wind power, and ethanol are so expensive is that they are derived from very diffuse energy sources. It takes a lot of energy collectors such as solar cells, wind turbines, or corn stalks covering many square miles of land to produce the same amount of power that traditional coal, natural gas, or nuclear plants can on just a few acres.

Each of these alternative energy sources is based on mature technology. Agriculture and fermentation have their roots in prehistory, windmills date back at least to 65 B.C., the photovoltaic effect was discovered in 1839. Yet nowhere in the world are these technologies serving as primary energy sources without significant government subsidies. While incremental improvements can be expected, what is needed for them to become viable is an order of magnitude increase in productivity.…

[Editor’s note: Part I in this five-part series examined Dr. Ehrlich’s views on Julian Simon, growing energy usage, and depletion. Part III examines Ehrlich’s conservation(ism) views.]

The Ehrlichs’ angst about the energy future was rife with forecasts that have been proven false–and embarrassingly so. As mentioned in Part I, the Ehrlichs’ protégé John Holdren has made similar radical pronouncements and wild exaggerations (see here and here) and even joined Stephen Schneider and other climate scientists in the global cooling scare.

Running Out of Oil

Writing in 1974, the Ehrlichs predicted that “we can be reasonably sure . . . that within the next quarter of a century mankind will be looking elsewhere than in oil wells for its main source of energy.” [1] Consequently, “we can also be reasonably sure that the search for alternatives will be a frantic one.”…

[Editor’s note: Part II in this five-part series examines Dr. Ehrlich’s failed predictions in energy. Part III examines Ehrlich’s conservation(ism) views.]

“Most of our colleagues don’t seem to grasp that we’re not in a gentlepersons’ debate, we’re in a street fight against well-funded, merciless enemies who play by entirely different rules.”

– Paul R. Ehrlich, quoted in Stephen Dinan, “Climate Scientists to Fight Back Against Skeptics,” Washington Times, March 5, 2010.

“Everyone is scared shitless [about the attacks from climate-science critics], but they don’t know what to do.”

– Paul Ehrlich. Quoted in “Climate of Fear,” Nature, March 11, 2010.

Paul Ehrlich is back in the news regarding Climategate and the IPCC controversy.  How ironic!  Dr. Ehrlich’s multi-decadal over-the-top pronouncements of doom-and-gloom, and his arrogant behavior towards his critics (Julian Simon in particular), might qualify as Malthusgate.…

Joseph Romm heavily edits the comments at his top-rated energy/environmental blog, Climate Progress, a project of the Center for American Progress. (The more academic, one-post-per-day MasterResource is #14 of 2,800 “green blogs” as of 1/31/10 per Technorati, not too bad for being 13 months old.)

Dr. Romm will not publicly debate his distinguished opponents either, just as Paul Ehrlich refused to debate the late Julian Simon. Though thin-skinned and trigger happy, Romm has not attempted to rebut a four-part post at the Breakthrough Institute by Michael Shellenberger, Ted Nordhaus, et al., Joe Romm and Climate McCarthyism, a widely disseminated and discussed event on the Left. (Updates on the Romm series are available at the Breakthrough Institute blog.)

Nor will Romm show the courage of his convictions by betting on his predicted global warming trend, which has led some to speculate that Romm deep down is really a global lukewarmer.…