Articles by Joseph Romm

Lake Chad now one-tenth of its 1972 size

Satellite images show Lake Chad one-tenth the size it was in 1972, not even 40 years ago. Lake Chad used to be the world's sixth-largest lake, but its resources have been diverted for human use or affected by rainfall such that its been almost entirely depleted in a very short amount of time:

Americans drove less in April 2008

April 2008 saw another sharp drop in vehicle miles traveled (VMT) according to the Federal Highway Administration's monthly report on "Traffic Volume Trends" (PDF). This follows, "the sharpest yearly drop for any month in FHWA history" in March (see here).

I was compelled to blog on this because of the incredibly astute media coverage by AFP, "worldwide news agency," which wins the "Duh!" award for the month:

Observers surmise a possible link between the declining number of miles driven and rising US gasoline prices.

Greenland can warm 2-4°C in one year

A new article in Science Express (PDF)($ub. req'd), "High-Resolution Greenland Ice Core Data Show Abrupt Climate Change Happens in Few Years," examines, "The last two abrupt warmings at the onset of our present warm interglacial period." The article explores the underlying causes of ...

... abrupt shifts of northern hemisphere atmospheric circulation resulting in 2-4°K changes in Greenland moisture source temperature from one year to the next.

The article concludes that

... polar atmospheric circulation can shift in 1-3 years resulting in decadal to centennial scale changes from cold stadials to warm interstadials/interglacials associated with astounding Greenland temperature changes of 10°K. Neither the magnitude of such shifts nor their abruptnesses are currently captured by state of the art climate models.

The time to act is yesterday.

This post was created for ClimateProgress.org, a project of the Center for American Progress Action Fund.

Honda fuel-cell vehicle: Not marketable, practical, or environmental

Technology Review asked me to comment about the hype over the new Honda fuel-cell car, which the company optimistically calls "the world's first hydrogen-powered fuel-cell vehicle intended for mass production." The key word here is "intended." Here it is:

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Would you buy a car that costs 10 times as much as a hybrid gasoline-electric, like the Prius? What if I told you it had half the range of the hybrid? What if I told you most cities didn't have a single hydrogen fueling station? Not interested yet? This should be the deal closer: what if I told you it wouldn't have lower greenhouse-gas emissions than the hybrid?

Other than the traditional media, which is as distracted by shiny new objects as my 16-month-old daughter, nobody should get terribly excited when a car company rolls out its wildly impractical next-generation hydrogen car. Too many miracles are required for it to be a marketplace winner.