Five Cities with Game-Changing Sustainability and Resilience Plans

Game-changing mega-projects in five cities promise cross-cutting impacts including low-carbon mobility, recreation, green infrastructure, societal improvements and mobile communications. By planning diverse and ambitious results, these resilient projects may take years to decades, yet they promise massive rewards.

Which are the five cities with game-changing plans or projects, and how will they do it? (in alphabetical order):

1. Atlanta BeltLine

Focus: Recreation, Mobility, Economic Redevelopment, Green Infrastructure

Timeframe: 0-20 (short to medium term)

The BeltLine is 22 miles of rail, trails, greenspace, housing and art development circling within 5.5 million population Metro Atlanta. While the City of Atlanta, with a population of 450,000, is only a small percentage of the Metro, it has taken a regional leadership role for the BeltLine under Mayor Kasim Reed–so far it appears to be paying dividends.

Part mobility solution, recreation opportunity and nature-art “acupuncture”, the BeltLine was conceived as part of master’s thesis by a Georgia Tech Student Ryan Gravel in 1999.

beltline mapBeltLine map courtesy BeltLine.org

Atlanta Mayor Kasim Reed told Common Current: “The Atlanta BeltLine is a transformative development, bringing economic, environmental and social benefits to every neighborhood in the City. Four hundred million dollars of public investment has yielded more than one billion dollars in private investment, strengthening the economic vibrancy of neighborhoods.”

According to Mayor Reed, the BeltLine’s multiple benefits are increasingly evident. “We are already seeing the signs of renewed investment along the Southwest Trail, currently under construction. The BeltLine is remediating land impacted by decades of railroad and industrial use, bringing clear environmental improvements to the corridor. And finally, as we see families, friends, and neighbors coming together on the BeltLine each day, it’s clear that this project is strengthening social ties across the City of Atlanta.”

beltline performance

Kollaboration ATL–Kingsmen and Kavi Va: the Wizard of the BeltLine (Courtesy BeltLine.org)

Next steps are for the BeltLine to connect to the Atlanta MARTA and the city’s new streetcar systems–9 miles have been purchased for transportation rights of way and technical analysis is under way.

Debt allocation financing for the first phases of the BeltLine has been challenged as impacting other community services, including education. Boding well for the project, however, are the city’s recently improved credit rating and rising real estate market values, along with the quest of Millennials and Gen Z to ditch—or never buy–cars.

The BeltLine is a catalyzing force across sectors: non-profit groups Chattahoochee Now and Trust for Public Land are advocating that downtown Atlanta’s blighted and polluted Proctor Creek, and the area’s Chattahoochee River (one of the main sources of the city’s drinking water) watershed, be restored and integrated into BeltLine network planning.

2. Guangzhou Bus Rapid Transit (BRT)

Focus: Mobility, Economic Redevelopment

Timeframe: Now-Short term

Guangzhou is China’s newest megacity, with 10 million people. Its recent spike in traffic and smog prompted the Guangzhou Municipal Engineering Design and Research Institute, in partnership with the The Institute for Transportation and Development Policy (ITDP), to open the city’s Bus Rapid Transit System in 2010.

Unlike the world’s other large model BRT project, The Transmilenio in Bogota, which costs about $1 US dollar for riders, the fare of Guangzhou’s BRT is more affordable, at about 1.5 Yuan (thirty US cents). In terms of financing, capital costs of BRT systems are about half the per-mile costs of light rail and one-tenth the costs of metro lines.

Guangzhou’s BRT is exemplary not only for its 1,000,000 million daily trips (more than all of Asia’s BRT systems combined), but also because of its precedent-setting integration with zero carbon mobility including bicycling and pedestrian thoroughfares.

brt bike sharing

The system is lined with dedicated cycling lanes (a rarity in China), cycling changing lockers and other “last mile” amenities. Guangzhou’s bike sharing system was opened with the BRT in 2010 to solve ‘the last mile’ issue of BRT station access. The bike-sharing program has 113 stations with 5,000 bikes and around 20,000 people use the system every day–two-thirds of those trips were previously motorized.

Despite BRT’s rapid growth and good performance, there remain challenges in China in terms of public city street rights of way, as well as smooth integration with metro systems, light rail and other modes of public transport. Guangzhou is also planning a major extension of it metro system by 2016, trying to become one of China’s least car-dependent major cities.

Cars contribute the major source of stifling and even deadly smog in Guangzhou and Beijing, according to recent studies.

Based on Guangzhou’s lead, it’s clear that BRT can be considered as the lifeblood of a global trend toward a new urban mobility and planning paradigm.

call plus

3. Helsinki “Katsuplus” Mobility on Demand

Focus: Mobility, Communications

Timeframe: (0-10 year) (Short to medium term)

Helsinki, Finland, has realized more than perhaps any other city that most of our motorized experiences five or 10 years out will not only be intelligent, connected, and electric but they will be offered as part of a ride sharing service.

Sharing Economy amenities will increase the utility of the up to 50 percent of urban public space that is devoted to cars and car parking, while significantly cutting carbon and vehicle ownership costs.

“Call Plus,” provided by technology company Ajelo, includes car hiring services such as Uber, taxis, vanpools. Just as Uber offers rides through smart phone apps, Helsinki is ramping up a city-subsidized service where it is offering vanpool rides to anyone in the city of 620,000 at about half the price of a cab.

While 80 percent of the service is subsidized and 20 percent comes from operating revenues, those percentages are forecast to reverse as the program scales up with users while the city also builds out its “Green Network” of public transit and transit oriented development.

Expediting growth in operating revenue growth might be Ajelo’s acquisition by the Washington tech firm, Split, which plans to expand to trains, ferries, shared bikes and taxis.

Helsinki officials met for several days earlier this year with the City of Palo Alto, which is exploring mobility as a service within its highly specialized techno-cultural-education ecosystem that includes Stanford University, Zimride and Tesla Motors.

mayor garcetti Photo Los Angeles Mayor Eric Garcetti on Los Angeles River courtesy of YouTube

4. Los Angeles River Revitalization

Focus: Green Infrastructure, Mobility, Recreation, Economic Redevelopment, Water Supply

Timeframe: 0-20 years (short to medium term).

Much of the Los Angeles River has been encased in a 43-mile long sarcophagus for nearly a century. Watch Grease or Chinatown and you’ve seen the sarcophagus, but not the river.  Mayor Eric Garcetti (above) wants to change that by awakening the potential of this powerful natural economic and cultural asset in the heart of the Los Angeles Basin.

With community visioning, (led by the Los Angeles Revitalization Corporation), planning, engineering and, the reawakened LA River can achieve huge wins:

  • restore rapidly depleted aquifers and filter polluted runoff, improving water quality in the river system, aquifers and the coastal waters (and beaches) of the Pacific
  • transverse jammed freeways with a human, aquatic and fauna habitat zone that acts as a low-carbon mobility corridor from the Santa Monica and San Gabriel mountains to the Pacific
  • catalyze untold neighborhood improvements, leading to flourishing real estate opportunities
  • help cool a city impacted by record drought and record average temperature increases

Think of the success of New York’s High Line. Now multiply that at least 100x in terms of project space, impact and dollar benefit, including potential for providing more usable water during times of prolonged drought.

Funding for the redevelopment project was boosted in spring 2014 by $1 billion provided by the Army Corp of Engineers in conjunction with state and city sources for an 11-mile “soft-bottomed” stretch between Griffith Park and Downtown.

Other financing for the project could come from California’s new Enhanced Infrastructure Financing Districts.

Of course the river redevelopment project will have to be phased in stages and sections. Flooding from extreme rains or the lack of river flows during ongoing drought, meanwhile, can be wild cards in designing floodplains as recreational areas and other natural riparian features.

Areas adjacent to the LA River contain important aquifers that can be recharged for local water supplies. Yet dangerous pollutants from poorly regulated military-industrial legacies–such as the persistent heavy metal Chromium 6–have also been repeatedly detected in the river or in nearby aquifers and storm drains.

ribbon park

5. Tianjin Ribbon Park and Waterway Restoration

Focus: Green infrastructure, Recreation

Timeframe: Now-10 years (Short to Medium Term)

Tianjin’s Ribbon Park (above) is the first soft-scaped, natural-edged restoration on the Haihe River in China’s arid north. The new 75-acre park restores stormwater retention in order to clean the river, cool the Central Business District and provide refuge for residents and visitors among native plants, trees and walking paths.

Tianjin (11 million), is an ancient gateway to inland Beijing from the sea, a historic port on Bohai Bay and center of industry and transportation, that includes a node on the nation’s high-speed rail line. Beginning around 1990, the city grew at a furious pace and in the process it channelized, diverted or even covered its natural waterways, just as Beijing did.

Ribbon Park is part of a national economic development plan is now attempting a green restoration on China’s vanishing waterways and adjacent polluted tidal flats. The Tianjin Eco-City, being developed by the Sino-Singaporean Development starting in 2008, is an adjacent “new city” planned for 350,000 by 2020.  The partially occupied development includes 6.6 kWh of solar power, wind power, EV charging centers and a national smart grid pilot.

Ribbon Park was designed by Hargreaves Associates of San Francisco to “slow water and encourage infiltration in one of the most engineered hydrologic basins in the region,” according to former Hargreaves senior associate Wright Yang, who worked on the project for five years.

The recently-opened 75-acre park adjacent to the downtown central business district provides stormwater and flood management through an alluvial plain that is an exemplary public park. “It’s the first park along the entire river that is soft-scaped and natural edged, said Yang, now an independent design consultant. “It is connecting people back to their land through the landscape.”

Connecting people and the cities of China back to their ecology is a timely model: China will be adding 100 million people to its cities over the next several years. The last 100-200 million new urbanites has come at great natural expense, with some cities going so far as to remove entire mountains to produce flat development surfaces.

These actions have led to severe erosion, impacted air quality from dust, not to mention urban heat island impact and endangering water supplies.

Ribbon Park and other Tianjin waterway improvements have the potential to be international lighthouse projects for eco-system services as public amenities, especially in the dense, high-value real estate districts of Eastern Asia.

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Will Urban Green Infrastructure Help Mitigate Megadrought?

Nanyang Technical University, Singapore

NASA’s new report on the likelihood of megadrought in the Central and Western United States is a harsh yet timely wake-up call for cities and the need for green infrastructure. It’s ironic but those taking the earliest green infrastructure leadership–such as Philadelphia, Portland and Copenhagen–have historically had adequate rainfall and water supplies. Meanwhile, Los Angeles and other global cities in extreme drought such as São Paulo and Beijing that at least partially depend on aquifers for drinking water, are now exploring how green infrastructure can be part of a climate-change resilient city’s main arsenal in water retention or conservation.

The joint NASA-Cornell and Columbia universities report forecasts that if we continue on our current path, climate change will fuel multi-decade droughts for the Central and Southwest US on an order of magnitude not seen for 500+ years and worse, with intensity far beyond what has already been experienced during the past several extreme drought years in California, Colorado and Texas.

On a recent 70+ degree January day–historically warm even by Los Angeles standards but becoming the norm during the state’s multi-year extreme drought–the sustainable city group from Autodesk and I met with Los Angeles Mayor Eric Garcetti’s office along with top water officials at the Los Angeles Department of Water and Power (LADWP), the nation’s largest municipal utility. We explored how green infrastructure analytical and capital planning technologies developed by Autodesk (a client of my consultancy) and partner company, Impact Infrastructure, can model economic, environmental and social benefits. These would include recharging aquifers and preventing localized flooding in LA’s San Fernando Valley and other city districts. Autodesk is also preparing to work with Washington, DC and Atlanta on district and metro area green infrastructure modeling and prioritization approaches.

Impact Infrastructure, meanwhile, helped develop Autodesk’s new AutoCASE automated triple-bottom line project analysis software, which has been successfully used to model the costs and benefits of green infrastructure in arid cities such as Fort Worth, Texas and Tucson, Arizona. AutoCASE calculates economic, social and environmental benefits of green stormwater infrastructure, including flood prevention, reduced urban heat island impact, reduced greenhouse gases, increased public recreational values and improved air quality.

According to John Parker, Chief Economist of Impact Infrastructure, “Tucson is teaching the world that water is a scarce and precious, but undervalued, resource that is going to get scarcer and more valuable: because of its many benefits, nature’s green infrastructure is often the best way to deal with problems of water scarcity, quality, flooding, and urban heat islands.”

Megadrought and Megacities

Globally, the need for integrated development and water planning is just as urgent. In Beijing overuse of underground aquifers has caused ground subsidence–sinking–inducing cracking pavement, roads and buildings. Fresh water is rapidly being withdrawn from metro-area aquifers that have been the primary source of drinking water for the city of 20 million (full-time) to 30 million (including part-time) inhabitants. Major climate change-exacerbated drought and industry-induced water shortages have forced the city to import water long-distance (like Los Angeles does) from a national South-North water diversion project.  Indeed, Beijing is currently perhaps the most water-starved megacity in the world, but there are other cities poised to achieve that dubious status.

In 2013, Common Current advised the Beijing metro government on methods by which to systematically capture and reuse its stormwater, which often falls as rain during July and August in torrents that overflow the streets and wash off pavement into stormwater outflow systems. As the climate has been warming, much of the rest of the year is now almost devoid of major precipitation. Besides banishing the lawn for use in landscaping, (especially when used as pure decor in office parks, on freeway embankments, and around retail developments), Beijing needs to use urban planning, standards and new technologies to make low-impact development the guiding and enforceable rule so it can recharge its vanishing aquifers with fresh water, while also controlling its sometimes-deadly seasonal flooding.

Superstar Soil

Green infrastructure uses Low-Impact Development (LID) such as permeable pavement, bioswales, filter strips, rain gardens, green roofs, catchment basins and planters designed as part of the built environment to naturally filter precipitation and run-off through soil, gravel, sand, compost and other absorptive media, instead of letting pavement or rooftop run-off wash straight into storm drains.

Pollutants are naturally filtered by green infrastructure through its main component, healthy soil. Native trees or plants can be major ingredients of green infrastructure, but healthy soil is the main component of most redevelopment projects or engineered systems. Healthy non-compacted soil, in even in cities with poor soils, can be improved through the use of low-cost practices including composting,amendments and mulching. Of course trees–where they are appropriate–and native perennial plants tremendously boost soil’s water retention and carbon sequestration, while adding shade, wildlife habitat and more pleasant overall environs.

São Paulo, another megacity on the precipice of global climate-change water crisis, is facing a growing water supply shortage where taps are running dry and some of its 23 million citizens might be soon forced to abandon the city. I moderated a panel last week in the Silicon Valley with Marcelo Ignatios, Superintendent of São Paulo’s sustainable infrastructure programs, who outlined the programs the city has developed to incentivize green infrastructure with tax credits, air development rights and other innovative programs. The city has produced a sophisticated map of its soils and types of water retention qualities (see slide 13) in order to limit runoff and restore aquifers and creeks feeding reservoirs.

A biological inventory of São Paulo state concluded that 48 percent of its surface was covered by impermeable surfaces or completely devoid of vegetation. At the time of the survey, forests still covered 21 percent of the state, but they are rapidly vanishing to development. The city now is realizing that its fate is tied up with its forests and vegetation as much as are the fates of endangered local inhabitants such as the howler monkey or the red-breasted toucan: forests, vegetation and healthy soil retain water, cool cities and recharge aquifers. Indeed, recent research has posited that the ecosystem services of forests, vegetation and green infrastructure may help stabilize regional water cycles.

Singapore  “Global Hydro-Hub” Model

Nowhere else is urban green infrastructure planning and design combined with other water reuse and conservation approaches more successfully and artfully than Singapore. Originally lacking a sustainable fresh water supply as Singapore’s population grew, it was forced to import water from Malaysia, an agreement that terminates in 2060. Building upon the foundation of a visionary 1972 water master plan, Singapore launched a bold campaign about in the early 2000’s to become the world’s foremost knowledge and practicing city center for green infrastructure, smart city water management technologies and wastewater reuse. Singapore’s Utilities Board markets a bottled “New Water” product that comes from triple-membrane filtrated sewage treatment plants.

The crowning glory of Singapore’s water savvy is the engineered surface of its city, much of it designed or retrofitted in green infrastructure. Two thirds of the city–rooftops, parks, medians, sidewalks, roadways–capture rainwater and convey it via microprocessor controlled channels or tunnels to 18 reservoirs. LID in Singapore contributes 35 percent of the city’s water supply, with much of it integrated into innovative architecture as well as landscaping for pedestrian or recreational amenities. Eventually, the city has plans to turn ninety percent of its surface area into rainfall catchment.

Singapore not only demonstrates for the world the design and engineering potential of urban water reclamation through green infrastructure, but it shows how doing so can create an international center of excellence that can result in substantial economic returns in water-sensitized forms of urban planning, architecture, engineering, information technology and green infrastructure innovation (Singapore’s 2014 International Water Week event alone resulted in $11.2 billion USD in announced deals or contracts).

The rest of the water-challenged world–that includes or will include most of our cities–should take careful notes, and get very busy.

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US Climate Study: Cities Center of Risk, Opportunity

The US National Climate Assessment, a new draft study by 13 federal agencies under the Dept. of Commerce, warns that climate change is introducing to cities ample societal and business risks, but also economic opportunities. Because extreme weather is expected to increase, our changing climate is our future, especially in urban areas, where 80% of the nation lives.

The unprecedented 1000+ page draft report–the most ambitious scientific exercise ever undertaken to catalog the real-time effects of climate change, and predict possible future outcomes–came out Friday from top federal research agencies, state agencies, private industry and university experts. Today the report became available for public comment.

The report pulls no punches: “Climate change threatens the well-being of urban residents in all regions of the U.S….systems such as water, energy supply, and transportation will increasingly be compromised by interrelated climate change impacts.” And for California and the Southwest: “Snowpack and streamflow amounts are expected to decline, decreasing water supplies for cities, agriculture and ecosystems.”

In the longer term, the study asserts that sea level rise or superstorms ala Sandy will “affect coastal facilities and infrastructure on which many energy, transportation and water delivery systems, markets, and consumers depend.”

My takeaway is our nation’s most potent response will be to embark upon comprehensive urban planning, engineering and technology based on these new risks, which present almost limitless opportunities for adaptation and mitigation. Put another way, there will be a need to (as the study says) “test and expand understanding of the effects of different climate and integrated assessment model structures.”

As new investments in energy technologies occur, future energy systems will differ from today’s in uncertain ways–depending on the changes in the energy mix. This portends unprecedented opportunity, so look for some of the largest industry sector changes and resultant new business models in utilities and energy.

The National Climate Assessment cites several studies in predicting, “if substantial reductions in emissions of heat-trapping gases were required, the electricity generating sector would decarbonize first, given the multiple options available to generate electricity from sources that do not emit heat-trapping gases, such as wind and solar power.”

Significant opportunities will range across planning and design, combined with public and private investment in:

  • Distributed systems of all types will proliferate: renewable energy; wastewater, water and waste reuse. These technologies in many cases will provide better alternatives to large-scale centralized energy generation or water treatment systems and their outdated regional transmission networks, which are at risk to coastal flooding, severe storm outages, wildfires, and critical drought. Smaller localized or regional power outages lasting for weeks all the way up to the large historic Northeast US power outages (2003: 55 million impacted in US and Canada) are prime examples of events that could regularly occur as a result of such threats.
  • Smart grids and energy systems incorporating system redundancy. The Netherlands grid provides an example of a circular grid (versus hub and spoke) that is almost completely ensconced safely underground.
  • Water efficiency systems and water-conserving buildings, landscapes and materials
  • Cooling technologies and heat mitigating building design and urban landscapes
  • New materials, sensors and automated feedback systems that protect against, and warn and respond to extreme events of heat, wind, flooding, drought and wildfire

In order to reduce future risks and to cope with already occurring events, comprehensive urban climate planning, management and technology approaches are needed to implement massive upgrades to vulnerable infrastructure.

Extreme weather events are already affecting energy, and energy delivery facilities. Consider the regional gasoline shortages that occurred after hurricanes Katrina, Rita, Gustav and Ike because there was (and is) only a single pipeline from impacted areas to markets in the Southeast. Cities and smaller communities are more risk adverse to climate change impacts (or other natural disasters) with alternatives to private cars such as public transit, walkability and cycling infrastructure.

Policy makers, the private sector and academia will need to jointly collaborate to better “understand the relationship between climate change, energy development, and water- dependent socioeconomic sectors to inform national and state-level energy policies.” These sweeping new policies are likely to include everything from watersheds and aquifers to land development and other agreements for metro and city general plans and utility districts.

The bottom line is that global climate is apparent across a wide range of US geographies and sectors. Global human-caused climate change is projected to continue to occur over this century and beyond. The magnitude of climate change beyond the next few decades depends on our actions now, combined with how sensitive the climate is to increased carbon emissions.

Confirmed findings of the report include:

  • U.S. average temperature has increased by about 1.5°F since record keeping began in 1895; more than 80% of this increase has occurred since 1980. The most recent decade was the nation’s warmest on record. U.S. temperatures are expected to continue to rise.
  • Global sea level has risen by about 8 inches since reliable record keeping began in 1880. It is projected to rise another 1 to 4 feet by 2100.
  • Heavy downpours are increasing in most regions of the U.S. Further increases in the frequency and intensity of extreme precipitation events are projected for most U.S. areas.
  • Certain types of extreme weather events in some regions have become more frequent and intense, including heat waves, floods, and droughts. The increased intensity of heat waves has been most prevalent in the West, while the intensity of flooding events has been more prevalent over the East. Droughts in the Southwest and heat waves everywhere are projected to become more intense in the future.
  • There has been an increase in the overall strength of hurricanes and in the number of strong hurricanes in the North Atlantic since the early 1980s. Strongest hurricane (Category 4 and 5) intensities are projected to continue to increase as the oceans continue to warm.
  • Winter storms will increase. Other severe storms, including the numbers of hurricanes and the intensity and frequency of tornadoes, hail, and damaging thunderstorm winds are uncertain and are being studied intensively.
  • Rising temperatures are reducing ice volume and extent on land, lakes, and sea. This loss of ice is expected to continue.
  • The oceans are currently absorbing about a quarter of the carbon dioxide emitted to the atmosphere annually and are becoming more acidic as a result, leading to concerns about potential impacts on marine ecosystems.
  • The length of the frost-free season (and the corresponding growing season) has been increasing nationally since the 1980s. The largest increases have occurred in the Western U.S., affecting snow-pack water supplies and related ecosystems and agriculture.

The National Climate Assessment findings mean that public policies will be of little value that are solely based on either past business or operating models, past (or even existing) resource or energy prices, as well as so-called “100-year” flood models.

This is a new game and we can’t play by the same old rules with the same teams. But we now have, for the first time, the parameters of the playing field–the geography of observed and projected impacts. The fields of industry, economics and timescales are less defined.

Adapting to the climate and climate-impacted economy of the future that we are just beginning to experience will require the emerging collective intelligence of our society through the use of collaborative technologies including social networks, which was the subject of a San Francisco TEDx talk I gave last year.

We will need to leverage our institutions, particularly our educational system, while building upon the body of global knowledge that shows that if we act now, we can successfully avert the worst impacts of climate change that are daily becoming evident in the United States and throughout the world.

(Top: Photo of Lower Manhattan blackout during Sandy by Iwan Baan, New York Magazine)

Warren Karlenzig is president of Common Current, a global consultancy based in the San Francisco Bay Area.

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Chicago’s amazing street trees and parkways

I recently visited my hometown of Chicago, which 25 years ago, featured many neighborhoods that looked and felt like the proverbial concrete jungle. The street trees and lush and creative parkways throughout the city now make virtually unrecognizable some of the old northside neighborhoods I used to haunt.

The city wasn’t always denuded: a massive infestation in the 1960’s and 1970’s of Dutch elm disease wiped out most of the city’s street trees (a warning against mono-species planting). That left city parkways and sidewalks bare for a few decades, and might have exacerbated the city’s deadly 1995 heat wave that killed more than 700 citizens (possibly including my grandmother, who died during the event of unexplained causes). With climate change, the urban heat island effect is a threat all cities should be preparing for with street greening, along with green roofs and white-painted cool roofs: many of those that died in Chicago were elderly residents that lived in top-story apartments under black tar or asphalt roofing. They were literally baked to death, according to cool roof expert Lisa Gartland of PositivEnergy.

Mayor Richard M. Daley accelerated a massive street and city greening campaign around that time in preparation for the 1996 Democratic convention, and the city was transformed to this day (despite having to cut down of hundreds of diseased trees again around 1999-2000 due to an infestation of the Asian Longhorn Beetle). From planted and thickly mulched medians and boulevards, green rooftops, and lush bioswales under the city’s El, Daley’s Chicago legacy is evident. During previous visits, I’ve even come across steaming piles of rich-smelling free compost that the city has left at convenient pick up points for residents.

The only thing missing would be some strategic curb cuts to better accommodate soil filtration of storm run-off. Also, Norway maples dominate the street trees, which could be supplemented with other appropriate species that do not block the understory so much, something my friend and local master gardener Martie Sanders pointed out to me.

Still, walking four miles from the Roscoe Village neighborhood to the far north Hollywood lakefront neighborhood, I was enchanted by the green urban landscape in one of the nation’s largest and most diverse cities.

Enjoy the last of the summer greenery You’ll notice that the streets are devoid of people in the photos, as they were taken during the Bears National Football League game–one of the most dependable times to explore US cities in peace.

Street calming in Uptown neighborhood

The way it used to be: Clark Street in Uptown neighborhood

Lazing on a sunny afternoon (Photos by Warren Karlenzig)

Serious mulching for young Clark Street tree

 

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My TEDx Talk: Collective Intelligence for Sustainable Cities

Warren Karlenzig at TEDx Mission

TEDx Mission recently invited me to speak at their San Francisco event on how cities are using collective intelligence approaches to address climate change and climate change adaptation. Crowdsourcing and savvy planning are producing healthier quality of life and more resilient urban economies.
The talk drew upon my experience with Common Current, which is working with governments, the private sector and Non-Governmental Organizations (NGOs) globally on urban sustainability master planning, policy and technology around energy, water, infrastructure, mobility, land use and economic issues.
An underlying premise is that as we increasingly become an urban planet, diverse cities will provide the key to sustainability innovations. Others, such as Asian Development Bank’s Guanghua Wan and UCLA’s Matthew Kahn in a report released last week (pdf), “Key Indicators for the Pacific (2012)“, have made similar observations.
Common Current is now helping Lawrence Berkeley National Laboratory design indicators software for China’s Ministry of Urban Rural Development so China can better manage its 654 cities as “Low Carbon Ecocities.” China has been leading the trend toward urbanization, going from approximately 20 percent urbanites in 1980, to 53 percent now, to an estimated 70 percent by 2030. In our lifetimes, China has already experienced the fastest and largest mass migration of humans in the history of Earth.
Within this dynamic context, Common Current collaborates extensively with the United Nations, China, South Korea, Japan and the United States, as well as individual cities and communities, on green urban development policy and projects.
As you will see in the TEDx talk, effective strategy and management by city leaders is critical, but bottom-up approaches are also having surprisingly dramatic and replicable impacts that address climate change and resilience.
Climate change has been shown to be linked to prolonged drought, more frequent and damaging heat waves, record number of high temperatures (a 2-to-1 ratio over record lows in US over past decade), wildfires, record urban flooding, record urban rainfall amounts and record deadly superstorms, including violent tornadoes.
Nonetheless, on every inhabited continent, legions of talented and dedicated urban citizens (yes, suburbanites are included) are acting to slow climate change and protect us from its worst impacts through collective crowdsourcing, large-scale citizen participation and social media.
As you will see in the TEDx talk, green urbanization utilizing collective intelligence will assist a needed turnaround from our current plight. Instead of needlessly facing the brink of a volatile future completely unprepared, we are beginning to experience how the whole is indeed greater than the sum of its individual parts.

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