Toward a playbook for public-private partnerships

Here’s a tool for building sustainable cities, whether in Charlotte or Detroit, San Francisco or New York City and beyond.

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Toward a playbook for public-private partnerships

Solar-powered Noe Hill Smarthome is an eco-friendly dream in San Francisco

The LEED Platinum -certified Noe Hill Smart Ecohome marries state-of-the-art green technology and the indoor-outdoor lifestyle that urban dwellers dream about. The house, designed by EAG Studio , creates a healthy living environment with plenty of natural light, native plant gardens, rain catchment, solar power and a bevy of smart features to optimize power use. The house occupies a coveted site near the crest of the Collingwood hill in San Francisco . It spans three levels and comprises 5 bedrooms, 4.5 baths (with 3 bedrooms ensuite on the upper floor), media room, gym, flexible use 2-room guest suite, an open main level floor plan, 4 distinct outdoor living areas and 2-car independent parking. Related: Sunset’s Green Dream Home in San Francisco The dramatic vistas open up from the main living room and dining area connected to a sunny deck and a landscaped garden. The garden features drought-tolerant , native plantings. Retractable glass doors in the kitchen open directly to the deck and enhances the experience of the indoor-outdoor lifestyle. A sculptural staircase leads to the upper level and receives natural light from the skylight above. The bedrooms occupy the upper floor, with the luxurious master suite openning to its own view deck ideal for a morning cup of coffee or casual lounging. The staircase leads further up toward the roof deck with multiple dining and lounging areas perfect for entertaining guests. Related: San Francisco’s Solar “Mission: House” is a High-Tech Marvel A rainwater harvesting system captures most of the roof/surface water for landscaping irrigation. All exterior walls are insulated and optimized for energy efficiency, while a solar array provides renewable energy for the building. These systems, along with LED lighting , occupancy sensors and the use of reclaimed building materials make this building a modern and truly eco-friendly home. + Noe Hill Leed Home + EAG Studio

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Solar-powered Noe Hill Smarthome is an eco-friendly dream in San Francisco

Hundreds of mysterious stone structures discovered near ancient volcanoes in Saudi Arabia

Professor David Kennedy of the University of Oxford just discovered hundreds of mysterious structures near ancient lava domes in Saudi Arabia. Using Google Earth , Kennedy found approximately 400 stone walls that are believed to be more than 9,000 years old. Because the structures appear similar to others found in the Middle East , they have been dubbed “gates” The mysterious gates are located in the western Harrat Khaybar region of the country. According to the Bedouin, a nomadic group of Arab people, they were the “Works of the Old Men.” While there are similarities between the newly-discovered gates and others in the country, there are notable differences, as well. For instance, the gates Kennedy discovered are larger (the longest measures more than half a kilometer, the shortest is just 13 meters) and the space between them varies. Some are “almost touching” while others are “miles apart,” reports The Independent . Kennedy told Newsweek , “It is impossible at the moment to date these gates except relatively. I have argued in the article that they are the earliest of the so-called ‘Works of the Old Men’, the stone-built structures found widely in Arabia from northern Syria to Yemen , but especially common in the lava fields.” The “Old Men” are also credited with building “kites” – stone structures archaeologists say were used to catch migratory birds . They are found on top of the gates in other areas of the Middle East, signifying possible relationship. Said the Professor of archaeology, “The works known as Kites, which are certainly animal traps, may be as old as 9,000 years before present in some cases and there is one example of a kite overlying a gate. So Gates may be up to or more than 9,000 years old, which takes one back to the Neolithic .” Related: Large organic farm in Saudi Arabia switches to solar-powered irrigation Because the gates are situated on ancient lava domes (the volcanoes remain inactive), some of the structures bear traces of lava. This could prove a sufficient method to date the mysterious phenomenon. Kennedy’s findings will be published in an upcoming issue of Arabian Archaeology and Epigraphy . Via The Independent Images via Wiley/Arabian Archaeology and Epigraphy/Douglas Kennedy , Google Earth

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Hundreds of mysterious stone structures discovered near ancient volcanoes in Saudi Arabia

Here’s how cities can go completely renewable

A new handbook offers advice to cities willing to make the leap to join Frankfurt, Vancouver, San Francisco and more than 300 others in the transition to clean energy.

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Here’s how cities can go completely renewable

14,000 forced from homes by flooding in San Jose

A series of heavy rainstorms has caused severe flooding near San Jose, California, forcing a mandatory evacuation of at least 14,000 residents overnight . About 250 of those people had to be rescued via boat by emergency crews. The flooding affected Coyote Creek and the spillway of the Anderson Reservoir, which was filled to capacity by the recent rain. An additional 22,000 have not been ordered to evacuate yet, but have been encouraged to leave their homes. Some of those affected have complained that they received no advance notice that they needed to evacuate until firefighters showed up, delivering notifications door-to-door, leaving them little time to prepare. San Jose Mayor Sam Liccardo has pledged to investigate the issue. Floodwaters have begun to recede, however, the danger may not have passed. Further rain is forecast for this weekend, but the break in the rain should allow authorities time to assess the current damage. Water levels in Coyote Creek are already at a 100 year peak, so any additional rain could be dangerous. Related: California storms could herald the end of punishing historic drought After a lengthy drought, heavy storms have pummeled much of California this year, causing mudslides and flooding. Earlier in the month, nearly 200,000 people were evacuated near the Oroville dam due to fears it might overflow. Via NPR Images via AJ+

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14,000 forced from homes by flooding in San Jose

Did Uber flub its chance to expand self-driving ride-hailing service to San Francisco?

A few weeks ago, Uber quietly expanded its self-driving ride-hailing service to its hometown of San Francisco. The launch marked a triumphant leap forward just three short months after the company initially began offering riders in Pittsburgh the option of hailing a self-driving car. Unfortunately, the California Department of Motor Vehicles swiftly shut down the San Francisco operation by revoking the registrations on Uber’s 16 self-driving vehicles, citing the company’s failure to obtain the proper permits. That decision prompted Uber to announce it would look for another city to roll out its self-driving pilot program, but many questions remain about whether they will ever be able to pull it off in their home state.

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Did Uber flub its chance to expand self-driving ride-hailing service to San Francisco?

7 new micro-cabins in Colorado provide superior insulation in extreme weather

These seven rustic cabins designed and built by students at the University of Colorado Denver function as base camp for a non-profit focused on wilderness education. Clad in hot-rolled steel, the COBS Year-Round Micro Cabins blend with the surrounding pine forest and remain comfortable even in extremely cold weather. https://youtu.be/HwwYRDhGRxc The structures were built by 28 students as part of a design-build program called the Colorado Building Workshop . Organized by the architecture school at the University of Colorado Denver, the workshop produced 14 similar structures in 2015. Related: Modern low-maintenance cabin is a seamless extension of the Puget Sound landscape The cabins, each offering around 200 square feet of interior space and 100 square feet of deck, are elevated and supported by metal columns with concrete footings. Sheets of hot-rolled steel, which form low-maintenance rainscreens , envelop structurally insulated panels (SIPs) used for the walls and flat roofs, providing a high degree of thermal insulation . Birch plywood line the interior walls to create a warm, cozy atmosphere. All the electrical appliances, including lighting, heating and refrigerators within each structure are powered by a single electrical circuit. + Colorado Building Workshop + University of Colorado Denver Via Dezeen Photos by Jesse Kuroiwa

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7 new micro-cabins in Colorado provide superior insulation in extreme weather

How to choose a living tree to replant after Christmas

It takes about 10 years for a Christmas tree to reach maturity, and it’s a shame to kill a tree just so it can prop up ornaments and lights for a couple of weeks. Even though many cities do an admirable job of recycling trees (or ‘treecycling’) after the holidays are over, it’s always a bit depressing to see hundreds of dried-up, tinsel-covered trees out on the curb in early January. So instead of heading out to a tree farm, you might consider bringing a live, potted tree into your home this winter. After the holidays are over, you can plant the tree in the ground again (or you can get someone else to plant it), so it can get back to sucking CO2 out of the atmosphere. Purchase a Tree from a Nursery Nurseries in most parts of the country sell young pines and fir trees, and the best way to find a tree is to call around to local nurseries and ask what’s in stock. Living trees are much heavier than cut trees (a typical 5-foot tree is about 150 pounds), so you’ll probably want to choose a slightly smaller tree than normal. Transporting a living tree is a bit trickier than a cut tree, because you’ll need to treat it more delicately. The Original Living Christmas Tree Company in Portland suggests standing it up in the trunk of a car, so that the crown is sticking out behind. Locate a Tree Rental Service If you don’t want to deal with the hassle of finding a home for your tree after the holidays are over, a tree rental service might be a better option. Although tree rental services have been around for a few years in several cities, they aren’t available everywhere. Currently most of the live tree rental services in the country are located in California, Oregon and Washington. The Original Living Christmas Tree Company, which has been renting potted trees since 1992, is one of the oldest rental services in the country, and it offers eight different varieties for rent. In San Diego, dancing, singing elves from the Adopt A Christmas Tree company will deliver a potted tree to your front door. In most places, potted tree rentals will run from $75 to $100, but the prices vary widely. The Adopt-a-Stream Foundation in Everett, Washington, for example, offers tree rentals for just $20. In Los Angeles, prices at the Living Christmas Co. range from $25 for a tiny 2-foot allepo pine tree to more than $250 for a stately 9-foot Turkish fir. Choose a Tree that Grows Naturally in Your Region It’s important when choosing a Christmas tree to select one that grows naturally in your region so that once it’s replanted it will survive — hopefully — for many years to come. In the Pacific Northwest, Douglas fir is a good option. If you live south of the Mason-Dixon Line, you might consider Virginia pine or Eastern red cedar. And in the Northeast, a variety of pines and firs like Balsam fir, Fraser fir and white pine grow naturally. But who says all Christmas trees need to be conifers? In San Francisco, Friends of the Urban Forest and SF Environment offer non-traditional Christmas trees, like southern magnolia and small leaf tristania, which are planted on city streets after the Holidays. How To Care for a Live Tree Live trees should be treated with a bit more tenderness than a typical cut tree, because you want to make sure that it survives when it’s replanted. But you don’t need to have a green thumb to keep it alive. Just make sure it gets enough water (but not too much), and don’t leave it indoors too long. The longer you leave a tree inside the more acclimated it will become to the warm temperature. If you keep it indoors too long, it might not be hearty enough to plant outside. It’s best to keep the room that the tree is in as cool as possible, and if possible, use small LED lights and minimal ornaments so that you don’t put too much added stress on the tree. What To Do When Christmas is Over Once Christmas is over, rental services come to retrieve their trees. Some services rent the same trees every year, so in theory, if you like the tree you had last year, you could get it again this year (though it’ll be slightly taller). Others plant them after one use. If you purchase a tree from a nursery, you’ll have to deal with it yourself. There are a few options for live tree owners: you can donate the tree to a local parks department, church or school, or you can keep it an plant it yourself. If you live in a very cold climate, you’ll probably have to keep the tree in a pot until the ground thaws a bit  — just be sure to keep it outside and properly watered! Lead image (modified) © Louisa de Miranda and Flickr user Wonderlane

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How to choose a living tree to replant after Christmas

SolarCity chatter lifts hopes for building-integrated solar

The BIPV market could triple to $9 billion by 2019. Early examples: the San Francisco 49ers stadium and the flagship Apple store in San Francisco.

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SolarCity chatter lifts hopes for building-integrated solar

San Francisco may be first US city to pass legislation for green roofs on new buildings

30 percent of all the land area in San Francisco is comprised of rooftops, but most are underutilized, according to the San Francisco Planning Department . City supervisor Scott Weiner is offering a solution that builds on the measure passed earlier this year to require rooftop solar . If new legislation introduced September 6 is approved, San Francisco would be the first city ” to pass requirements for green roofs .” The San Francisco Planning Commission unanimously approved the legislation Weiner introduced. The existing solar mandate requires 15 percent of rooftops on buildings with 10 stories or less to include solar panels. The new legislation would go a step further: 30 percent of new roofs could be turned into green roofs or a blend of green roof and solar panels. Owners could include two square feet of living roofs or a blend of living roofs and solar as opposed to one square foot of rooftop solar panels. According to Green Roofs for Healthy Cities , their 11th Annual CitiesAlive Conference, hosted in San Francisco in 2013, helped inspire the legislation. Related: Santa Monica to require rooftop solar panels on all new buildings In a statement, Weiner said, ” Climate change and our continuing drought demand that we take aggressive action to improve our city’s sustainability…Rooftops are one of the last untapped environmental resources in our growing city, and we need to be strategic about how we activate these spaces. Our solar requirement was a great step, and by adding green roofs to the mix, we will make our buildings greener, our air cleaner, and our city healthier.” The next step is a vote from the San Francisco Board of Supervisors set to occur later in 2016. If they pass the ordinance, new buildings could start adhering to the new legislation January 1, 2017. The 14th Annual CitiesAlive Conference will take place in November in Washington, D.C. + Green Roofs for Healthy Cities Images via Peter M. on Flickr and San Francisco Planning Facebook

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San Francisco may be first US city to pass legislation for green roofs on new buildings

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