Pecha Kucha Rundown: Denser, Part 1

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Noelle and I had fun at Pecha Kucha in San Francisco at the SPUR Urban Center on Tuesday.  For those unfamiliar with the Pecha Kucha format, each speaker has 20 slides and 20 seconds per slide. The format makes for a fun but focused look at what a wide range of professionals is working on and thinking about. Presentations are loosely organized around a theme. The theme this time was “Denser.”

Using my notes, I am putting together a set of posts that lists the presenters in order, along with links to their website (if I could find them) and any major thoughts I jotted down. For some presentations, I took a number of notes. Other presentations have fewer notes (maybe I was looking at the images more carefully?). All of the presentations were more interesting and beautiful than revealed by my notes and these posts.

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Grady Gillies – Architect – UCLA, Suprastudio

DENSE city

dense buildings

dense population

dense space

dense community

Looked at 8 cities as part of the studio, including:

Cleveland, OH – transforming access and landscape

Flint, MI – advantage of a shrinking city’s migration is SPACE

New Orleans – blighted property presents an opportunity

Tucson, AZ – relentless expansion of the city edge

Merced, CA – looking at potential impact of high-speed rail

Toledo, OH – city’s solar industry as a new urban identity

More information on the studio and work:

http://www.suprastudio.aud.ucla.edu/

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Craig Scott – Architect – IwamotoScott

DENSER

environmental / technological performance

spatial / material geometry

urban / architectural experiences

3 focuses of firm’s practice – buildings, installations, and digital fabrications

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Robin Levitt – Detroit

(Anna’s note – his entire introduction was “Robin Levitt, Detroit” but there is a little info on the ever-helpful Wikipedia)

Talking about the de-densification of a city

Birthplace of the automobile

Detroit was the Silicon Valley of its day

1950s saw Detroit’s population peak just under 2 million

[Image of reduction in building density in the downtown district]

Detroit could geographically fit San Francisco, Boston, and Manhattan, but has a much lower population density

Population decline over the years

But actual geographical area of the city was expanding

Ruins now dominate the Detroit landscape

Neighborhoods have been cleared

City looking at a strategy of controlled abandonment

City of Detroit began as farmland, and in many neighborhoods it is returning to farmland

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Parts 2, 3, and maybe 4 coming soon!

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10 American Cities Running Out Of Water?

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Las Vegas, Nevada (Image credit: Wikimedia Commons)

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24/7 Wall St. evaluated a couple recent studies (from Ceres and the NRDC) and also conducted some of its own analysis, focusing on the 30 largest American cities,  to  come up with the following list of 10 large American cities at the greatest risk of running out of water:

10. Orlando, FL

9. Atlanta, GA

8. Tucson, AZ

7. Las Vegas, NV

6. Fort Worth, TX

5. San Francisco Bay Area, CA

4. San Antonio, TX

3. Phoenix, AZ

2. Houston, TX

1. Los Angeles, CA

You can read more about their analysis and reasons for inclusion of each city here.

A note from Anna – I do not know much about 24/7 Wall St. or their track record on this sort of analysis. I think this sort of list is good for raising awareness that it is not just cities in the dry Southwest that are facing future water shortages. However, there are a few items in this article that gave me pause – first is the consistent misspelling of San Francisco as “San Fransisco”, second is the consistent listing of the NRDC (Natural Resources Defense Council) as the “National Resources Defense Council.”

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Cool Planet – Art Rosenfeld

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In Berkeley, we are fortunate to have such events as Science at the Theater, where Lawrence Berkeley National Lab researchers give talks on their work at the Berkeley Repertory Theatre. The lectures are free and get a pretty sizeable audience.

On Monday, October 11, I was in the audience as researchers from Lawrence Berkeley National Laboratory (and the beloved Art Rosenfeld) gave a presentation titled “Cool Roofs, Cool Cities.” The post below consists of Part 4 of my record of the presentation – Art Rosenfeld gives an overview of how cool roofs and cool cities can leader to a cool planet. All portions are included in chronological order.

An ellipsis (…) indicates that I was not able to capture the words or thoughts skipped. The presentation is transcribed as accurately as possible – punctuation choices are mine. I also added any images.

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I’m going to bring us into modern times and the question of global warming … Two thousand years ago, people tried to figure out how to keep houses cool, then a couple hundred years ago, we tried to figure out how to keep the cities cool, and now we’re trying to figure out how to keep the planet cool.

Taking a trip around the world … [looking at photos].

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Image credit: Wikimedia Commons

In Bermuda, they use sloped white roofs to collect water.

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Image credit: Wikimedia Commons

In Santorini, Greece, even the sides of the buildings are white.

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Image credit: Wikimedia Commons

In Hyderabad, people like to sleep on the roof to be cool at night.

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Here’s a Wal-Mart store in Northern California with white roof – they’ve done 4500 of their stores, and have 1500 to go.

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Here’s an overview of UC Davis … Since 2005, the CEC Title 24 has required that if a roof is flat, cool roofs are required …

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Image credit: Wikimedia Commons

Here’s the University of Tucson in the middle …  residential areas nearby also have white roofs … …

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Here’s Washington, DC (federal) … The House and Senate office buildings do not have white roofs.

The most fun was this – this is the Pentagon. I went to a hilarious meeting – I got invited to give a talk at the Pentagon. There were innumerable generals and such around …

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Now what about the Earth? … Part of what keeps the earth cool is ice and snow, which is decreasing in size … It would be nice to add some more white … …

Atmospheric climatologists have been aware of this issue for years, and back in the 1980s, Jim Hansen published a paper wondering whether cooling cities would make a difference – and he got an answer of about a 1/10th of a degree … But we weren’t so worried in those days … But we asked, maybe there’s a better way to sell this? … Look, carbon dioxide reflects heat, that’s called a positive radiation forcing onto the ground. And white roofs reflect heat … Carbon dioxide has a price … So we’ve got to do it per unit … 1000 square feet, winds up being about 10 tons of carbon. Suppose we multiply this by about 3 billion, since there are about 3 billion units of roof in cities, then avoid the heating effect of 25 billion tons of carbon dioxide…over the life of the roof. So let’s say 1 billion tons a year for 25 years … This winds up being 300 million cars off the road for 20 years … There are only about 600 million cars right now …

So what to do now? First, get other states to follow California… Arizona and Florida and Georgia have followed suit with cool roofs … The problem is a lot of the rest of the country, the hot part … the United States relies  on model building codes, and states are not required to adopt them. They can make them stronger and adopt them, but they are not required to adopt them. Texas doesn’t have any, the cities there have taken the lead …  DOE is going white, the Marine Corps is going white …

We’re going to launch a private club called 100 Cool Cities, with some DOE help, where were’ going to approach the 100 largest cities, which gets us  to a population of 200 million, where we’ll talk to them about cool roofs and try to get it into the building code … This will involve the Sierra Club, the Clinton Global Initiative, USGBC, ICLEI, the Energy Foundation, the Alliance for Climate Protection, ACEEE, and others …

Steve Chu will offer assistance to the first few countries to sign up to address this issue … …

So things are moving along nicely, and thank you very much.

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Part 1 is posted here. Part 2 is posted here. Part 3 is posted here.

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