Articles by Joseph Romm

Bogs, not oceans, may have been the source of an increase in atmospheric methane

What triggered the Palaeocene-Eocene thermal maximum (PETM) about 55 million years ago, which saw the fastest period of warming documented in Earth's geological history? The PETM is associated with a rapid rise in greenhouse gases, particularly methane -- but the big question is where did the methane come from?

The most common answer has been the ocean (methane hydrates), but new research in Nature ($ub. req'd) casts doubt on the ocean theory -- instead finding chemical evidence that the methane came from terrestrial sources, bogs, which were themselves stimulated by rising temperatures -- an amplifying feedback. The lead author says:

A lot of temperate and polar wetlands are going to be wetter, and of course warmer as well [because of current climate change]. That implies a switch to more anaerobic conditions which are more likely to release methane. That's what's predicted, and that would be a positive feedback -- and we have evidence now that this is what happened.

Indeed, research from last year found "thawing Siberian bogs are releasing more of the greenhouse gas methane than previously believed." Why should we care about the source of the PETM?

Should USGBC certify a 15,000-sq.-ft. home as green?

A "speculative 15,000 square foot mansion in Manalapan, Fla., will be the first home of its size to be certified green by the U.S. Green Building Council and the Florida Green Building Council."

Is that a good idea for USGBC? That's my question to you. Obviously people are going to build big homes -- and it is better if they have green features. But should USGBC single out such "eco-mansions" for positive recognition?

On the big side, the mansion has:

... eight bedrooms, 11 bathrooms, two elevators, two laundry rooms, two wine cellars (one for red, one white), a movie theater and guesthouse.

On the green side, the mansion has a:

... state-of-the-art air purification system and eco-friendly light fixtures that will reduce energy consumption by 90 percent.

Making this mansion green, probably tacked on additional costs of between 7 and 10 percent ...

For instance, instead of using a rare Brazilian cherry for the home's hardwood floors, he's using reclaimed teak -- thus sparing 7.5 acres of Brazilian rain forest ...

The house will also have a massive solar panel system (price tag: $120,000), a water system that uses "gray water" from the showers and sinks to irrigate the lawn and gardens, as well as a series of pools, reflecting ponds and water gardens to cool down the 1.5 acre property by 2 to 3 degrees.

Urban growth rates in Qatar and China leave Friedman skeptical about climate change mitigation

First the good news from The New York Times:

We have ended TimesSelect. All of our Op-Ed and news columns are now available free of charge. Additionally, The New York Times Archive is available free back to 1987.

Good for them. Interestingly, even though I had paid my money to get TimesSelect, I pretty much stopped reading the stuff behind the barrier because I couldn't connect readers (i.e., you) to the material. The NYT had basically taken some of their best columnists out of the global discussion. Now they are back.

Friedman has a new piece titled "Doha and Dalian" -- "Doha [top] is the capital of Qatar, a tiny state east of Saudi Arabia. Dalian [bottom] is in northeast China and is one of China's Silicon Valley." Their growth rates have surprised even itinerant Tom:

State renewable electricity standards create jobs while cutting pollution

Since the federal government has so far refused to adopt a nationwide renewable electricity standard (RES) the states have stepped in. Some 25 states, plus D.C., have adopted an RES, also known as a renewable portfolio standard, which requires utilities to purchase a rising percentage of their power from renewable sources like wind and solar.

A new report by U.S. PIRG details the myriad benefits of state action to promote renewables: "Reaping the Rewards: How State Renewable Electricity Standards Are Cutting Pollution, Saving Money, Creating Jobs and Fueling a Clean Energy Boom." Here are some of the conclusions:

• In 2006, more than two-thirds of all new renewable electric generating capacity in the United States was built in RES states. In 2007, more than 70 percent of planned renewable generation is expected to be built in RES states.
• Texas stands out as the state with the most aggressive renewable energy development in recent years, adding 2,000 megawatts of new renewable energy capacity. Texas is followed by Washington, New York, and Colorado.
• Renewable energy is addressing a greater share of new energy needs in RES states. In 2007, renewables account for about 38 percent of planned capacity additions in RES states, compared to just 12 percent in non-RES states.