I’ve been on vacation the last week in Chicago/Michigan/Indiana so here’s some news items you might have missed:

Seattle is a walkable city!  According to Walk Score’s listing of the 138 most walkable neighborhoods in the country, Pioneer Square hits number 18, Downtown Seattle (wherever that is) is 33, First Hill is 46, Belltown is 61, Roosevelt is 64, the International District is 83, South Lake Union is 85, University District is 86, Lower Queen Anne is 97 and Wallingford is 133. And overall, Seattle is the 6th most walkable city, following San Francisco, New York, Boston, Chicago and Philadelphia. I don’t know that I agree with the ranking, do you? For more opinion on whether Seattle reeeeallly outranks Portland, check out the Seattle Weekly here. For more on urban development visit Seattle MetBlogs here, and  Sightline’s has more here with some pertinent reader comments!

The first meeting of the Green Building Task Force is tomorrow from  3:30 to 6:30 p.m. at the downtown library. The goal of the force over the next six months is to figure out how to actually make Seattle the “green building capital,” and help achieve Nickel’s February goal of improving energy efficiency in commercial and residential by at least 20 percent. I wrote about that in the DJC here. They’ll be looking at policy options, financing programs, efficiency incentives and regulatory mandates.

There will be two teams: one will work on existing building stock, the other will work on new. That’s an important point, as many energy efficiency programs or government mandates only look at new projects, and not existing, even though there is by far much more to fix in existing buildings.

I love sources that provide a virtual who’s who of green people and this task force does just that. Members include reps from AIA, AGC, BOMA, Master Builders, Mithun, NBBJ, Touchstone, Seattle Steam… you get the idea. To see the actual list, go here.

In other news, I learned on my trip that US Weekly has a spread in its current edition about green celebrity tips. I’m not sure how I feel about this, but if you (or your kids) want to know what Cameron Diaz does to go green, check it out. I must admit the part comparing carbon emissions from celebrity perks (like personal jets and yachts) to everyday life (coach seating, a little sailboat) was a tad - shall I say - enlightening (or depressing, take your pick). Treehugger covers it here.

When the Associated Press runs a story on the ”green grudge” between two Hollywood celebrities trying to outdo each other’s green homes, you know green is going mainstream.

Or is it? Are we talking about Angelina Jolie and Harrison Ford finagling over home energy efficiency? Or Madonna and Nicole Kidman scrupulously watching their water use? Nope. It’s Ed Begley Jr. and Bill Nye (the science guy).

According to the AP story, the battle to the death (of carbon footprints) started two years ago when Nye, a former Seattleite, moved one house away from Begley. Immediately there was tension. Nye said he’d beat Begley at his own green game. Begley got jealous of Nye’s solar panels, and so blossomed the now historic rivalry.

In Nye’s corner: a new solar panel system that shows when he’s saving more power than he’s using, an electric fence powered by a matchbox-sized solar panel to keep animals away from his home grown produce, a patio cover made of recycled plastic lumber, copper rain gutters, and an American flag that gets illuminated at night via a light bulb powered by a tiny solar panel.

In Begley’s corner: older solar panels, rain barrels to offset his wife’s 20 minute showers and water plants, composts garbage, cooks in an outdoor solar oven,  an electronic sprinkler system that checks the forecast and shuts down if it is supposed to rain, a white picket fence made of recycled plastic milk cartons… a shtick as a green guy and a TV show on HGTV to share his info with the masses.

So which one is greener?

And are these really the best ways to green a home? Personally, I’m wondering about their energy efficiency, insulation… house materials. Things that are less flashy than a night-lit American flag. 

And while they may not exactly be A-list celebrities a little competition (and publicity) is always said to be good for business. Now if only Brad Pitt and Britney Spears could get in on the game….

And local readers, when Begley was in town at the AIA’s ReGeneration Conference in April, he said Seattle already understands sustainability… and that architects and people in the construction industry here need to keep up the great work and set examples for the rest of the country. Take it for what it’s worth.

For other versions of this story, check out green gossip site Ecorazzi. For information on green celebs go to msnbc here and click on the picture of Brad Pitt to the right (Begley is picture 5). Interested in the least-green celebrities? Visit Ecorazzi again or the Chicago Tribune (P.S., number 4 is Al Gore….)