Articles by Joseph Romm

Depends on how it’s made

It depends on the fuel used to drive the conversion process -- according to a new study:

In particular, greenhouse gas emission impacts can vary significantly -- from a 3% increase if coal is the process fuel to a 52% reduction if wood chips are used.

These results come from the energy life-cycle wizards of Argonne Lab, who have published a new study, "Life-cycle energy and greenhouse gas emission impacts of different corn ethanol plant types," in the open-access Environmental Research Letters.

Here is a figure showing "well-to-wheels greenhouse gas emission changes by fuel ethanol relative to gasoline":

Looks like the plug-in might actually happen

General Motors is apparently serious about introducing a plug-in hybrid electric vehicle, which I have repeatedly argued is the car of the future (PDF). The race is now on between Toyota and GM as to who will be the first to introduce this game-changing vehicle.

The Chevy Volt is to be the "legacy" of Robert Lutz, GM's vice chair of product development, according to Business Week's "Auto Beat" column. The Volt will go about 40 miles on an electric charge before reverting to being a regular gasoline-powered hybrid.

Not so perma, not so frosty

Thanks to global warming, the permafrost is no longer very perma, nor very frosty. I've noted before about how the ultimate release of huge amounts of greenhouse gases formerly trapped in the tundra could create a "self-perpetuating climate time bomb." But we shouldn't ignore the severe local impacts.

The cost of acting first on climate change vs. the cost of not acting

"Lose-lose: the penalties of acting alone stall collective effort on climate change" is an article the Financial Times ran a while back. While the piece gives a panoramic analysis of the international prisoner's dilemma, there are two other angles that are missing. The first is the penalties of no one acting. According to the UK's environmental minister, the economic rationale for inaction is that the first country to act risks undergoing some degree of economic hardship. This, he explains, is "the last refuge of the deniers -- the idea that it's not worth anyone doing anything unless everyone does it."