Is the proliferation of electronic devices in homes and offices causing a net increase or decrease in electricity consumption and greenhouse gas emissions?

This question has been a topic of heated controversy ever since 1999, when technology analyst Mark P. Mills published a study provocatively titled “The Internet Begins with Coal,” and co-authored with Peter Huber a Forbes column titled “Dig more coal – the PCs are coming.”

Others–notably Joe Romm and researchers at the Lawrence Berkeley National Laboratory–argued that the Internet was a minor contributor to electricity demand and potentially a major contributor to energy savings in such areas as supply chain management, telecommuting, and online purchasing.

Mills and Huber argued that digital networks, server farms, chip manufacture, and information technology had become  a new key driver of electricity demand. …

Supporters of the Waxman-Markey climate bill have not seriously disputed the extreme costs and the negligible benefits estimated by critics of the cap-and-trade proposal.  I must confess that I was expecting a real fight, but some very important markers seem to have been laid down in this legislative debate. Waxman-Markey supporters are going beyond the math to dispute the conclusion being drawn from the math. And that conclusion, which logically follows, is that cap-and-trade for carbon dioxide is a very bad deal.…

It was nice to see John Tierney in his blog post, The Skeptical Prophet, pay tribute to John Maddox, the scientist and revered long-time editor of Nature. “He debunked the catastrophists, most notably in his 1972 book, The Doomsday Syndrome,” noted Tierney, “in which he argued that Spaceship Earth had more carrying capacity and ecological resilience than environmentalists realized.”

Tierney adds: “His book was denounced at the time by John P. Holdren, who is today the White House science advisor. In a 1972 article in the Times of London, Dr. Holdren and his frequent collaborator, the ecologist Paul Ehrlich, dismissed Dr. Maddox as ‘uninformed’ and clearly unable to understand ‘simple concepts’ of population theory.” Stated Ehrlich/Holdren (as quoted by Tierney):…

Back on Feb. 15, George Will wrote an op-ed in the The Washington Post in which he claimed:

As global levels of sea ice declined last year, many experts said this was evidence of man-made global warming. Since September, however, the increase in sea ice has been the fastest change, either up or down, since 1979, when satellite record-keeping began. According to the University of Illinois’ Arctic Climate Research Center, global sea ice levels now equal those of 1979.

This set off a major controversy that continues to this day.  (For example, see here and here.)  As the master of hyperbole Joe Romm points out with delight, the Post actually contradicted Will by name in a news piece, which is quite unorthodox.

This blog does not tackle the huge issues of sea ice and whether we should be terrified or not. …