Taking in the view on the balcony of my friends' home in the Castro district of San Francisco (picture, left), it's hard to imagine a better city to be in the world. There are the hills, the fresh air, and the lovingly maintained gardens in the back of most of the neighboring buildings. It's simply beautiful.  

There are few cities where I feel as good and at home as San Francisco.  The city justifiably has important symbolic value throughout the world as a bastion of individual freedom and human dignity, and this is undeniably a desirable feature of life in this area.  The Bay Area, San Francisco's region, is my favorite part of the United States.  I lived in the East Bay (Berkeley) over 10 years ago while in grad school, and I never forgot the unique feel to this area.  The climate is mild, the vegetation is Mediterranean, the people are generally tolerant and open-minded, and there's simply a spontaneity and sense of possibility in the air here. Most residents wouldn't think of living anywhere else. 

From another height, looking out over the city from one of its rocky hilltops, it would be easy to idealize this city and imagine it as one of the most sophisticated and livable in the world. San Francisco, however, is usually experienced at ground level, and the experience here strays from any idealization of that sort. 

This city is no earthly paradise, although it has an incredible charm and many attractive attributes.  But its global reputation and image are bound to disappoint on closer examination, as many foreign visitors have told me.  This extremely expensive city has seriously rough edges that drag down its quality of life in multiple ways. Despite being virtually the wealthiest large city in the United States, it often has a ramshackle, dirty and run-down look to it.  This shabby appearance comes as a surprise to many visitors from abroad who expect more from this legendary city.  In fact, in the face of incredible natural advantages, a highly educated population and wealth, it settles for a second-rate quality of life for the bulk of its inhabitants.  Yes, I did say San Francisco has a second-rate quality of urban life.  In this blog posting I will explain my view.  Brace yourself as I dig further into the pathologies of American cities. 

But first a little glimpse of beauty from this city (it is rich in beauty like this), to highlight the shame of allowing so much of it to be so mediocre.

There are four outstanding things I will focus on, common to American cities, that stand in the way of San Francisco reaching its very high potential. They are poor infrastructure, lack of human scale, autocentric design, and immense social problems.  

The American Society of Civil Engineers, in their 2013 Report Card for America's Infrastructure, gave the United States an overall grade of D+ for its crumbling infrastructure.  This is close to a total failure.    
I am rather astounded at the general public's apathy in the face of our country’s shamefully ill-maintained infrastructure.  I'd expect outrage, really. Perhaps Americans have gotten used to this state of affairs, and don't know what quality public infrastructure looks like in other wealthy countries around the world.

This rough infrastructure is, in fact, one of the things most characteristic of American cities.  San Francisco is no exception, and a walk around this city can be a big surprise to visitors from northern Europe, Japan or Australia. Things are simply not well maintained, or maintained in a manner fitting a poor, developing world city, not one of the wealthiest and potentially most beautiful cities in the world.  Sidewalks and streets are haphazardly patched, public transport is rough, and city parks are often in poor condition.  

The poor infrastructure of this city is highlighted by the liberal use of cement, frosting all surfaces often without leaving any space for trees and vegetation or other features.  Although San Francisco is politically 'green', the city itself is in desperate need of more trees.  SF ranks 17th of the 20 largest cities in the US in terms of its urban forest and in terms of street trees, I'm sure it must be at the absolute bottom.  Many, if not most, streets of San Francisco are uninviting urban deserts, despite enjoying an exceptionally good climate.  Below are a sampling of San Francisco's cement-covered and lifeless streets.  

Streets in San Francisco, like those in most other American cities, are often exceptionally wide.  Their breadth is totally out of proportion to the height of the buildings that run along them, making for unattractive and often very uninviting streetscapes. Streets seem to be simply thought of as corridors for mobility. Other functions of streets, as public space, for example, are just an afterthought.  

For most of the world's urban history, cities and streets were built on a human scale.  Streets in older cities around the world tend to be relatively narrow, and these streets seem in scale with the buildings that line them.  Americans seem to have forgotten what makes for exciting, engaging and beautiful streets.  The key is a profound sense of humanity in design. This is quickly recognizable.  Streets and public spaces designed with humanity attract people, not just passers-through, but people who stay for extended periods of time.

Exacerbating the scale issue in San Francisco is what I call a low density of detail in many areas, making streetscapes unappealing and unengaging. Great streets have many details, complex details, providing many reasons to stop and do something, if it only be to sit on a comfortable bench and admire the fine paving stones and beautiful landscaping.  This density of features can be called 'friction'.  Streets with friction are destinations in and of themselves, places you go to do many things at once (without having to get in your car and go elsewhere) and places that bring people together.  San Francisco has many streets like this (for example, Dolores and Mission Streets), of course, but far too many of its streets are rather lifeless.   This is a shame, as open spaces in cities are opportunities for the common good and streets are generally the most common open spaces citizens have to enjoy.  Streets should be the most important public spaces in a city.

Its easy to see when a street has become a successful public place because it will attract people.  Streets that are unsuccessful have few people and are lifeless.  Naturally, cities need a full range of street types (including quiet residential streets), but San Francisco has vast wasted street spaces that could instead be alive with street life and business opportunities.  

Market Street is emblematic of what's wrong with many of San Francisco's streets.  It is a low density, extremely wide expanse of cement and asphalt, with generally very low friction (except in the heart of downtown and near Castro Street).  I would never want to spend time on most of it.  It is ugly, a haven for San Francisco's homeless and really a showcase of the city's social problems.   

Maybe I should applaud SF for not hiding America's reality of haves and have nots, but still, Market Street is generally not a pleasant place to be, despite its key location running from downtown to the Castro.  It should be San Francisco's most vibrant and attractive street, without excuses.  

A main driver of the scale problem in San Francisco is the autocentric design of its streetscapes.  

In American cities, people on opposite sides of a street are usually separated by wide swathes of fast-moving traffic.  Cars, and space dedicated to cars, eat up the bulk of the open space streets provide, Streets are not primarily thought of as places for people to gather and do things, but instead as spaces to facilitate the rapid movement of automobile traffic.   

In San Francisco, the car-dominated street design spreads over into the design of sidewalks and buildings to an extent that I have not seen in any other densely populated American city.  Despite having decent public transportation within the city (decent, not great), a high proportion of residents of San Francisco have cars and use them to commute, particularly if they work outside of the city.  Regional public transit in the Bay Area is inconvenient and expensive.        

This reliance on auto transport created a problem:  where to park all the cars in this densely packed city. The solution was to build housing with garages on the first floor, in addition to allocating much street space for car parking.  A distinctive feature of San Francisco, therefore, is the garage doors facing the streets throughout much of the city, as you can see in the picture above.  This proliferation of garages along the city's streets drastically distorts the function of the city's streets by creating dead zones along sidewalks.  There is no space for shops or cafes,  The streets are bare of trees and vegetation because cars cannot leave garages if trees are planted along the street.  The result is an abundance of lifeless and treeless streets that are wholly unattractive and serve no social function.        

Allowing car owners to dominate so much of a city's open space is not only detrimental to urban livability, the use of this space by cars costs a city money.  A study from Connecticut shows how much allocating and subsidizing parking spots actually costs a city (in the case of Hartford, it comes to about $1,200/year per parking place).  In San Francisco's case, as sidewalk and street space in front of the endless garages cannot be utilized for anything else, there is a huge hidden subsidy that must be considered beyond the subsidized street parking the city provides.  

Finally, San Francisco shares the American problem of vast, inadequately addressed social problems.  Visitors to San Francisco will quickly note the huge numbers of homeless people on the city's streets.  

Riding public transport is another way to come into contact with large numbers of people with serious problems.  You simply don't see this kind of thing, on this scale, in other wealthy countries. Crime is also higher than it is in most of Europe, Canada, Australia or Japan. 

San Francisco has, it must be said, a very racially and economically diverse population.  The varied groups have different needs and interests, and the national and local governments have not been very skillful at managing the situation, resulting in severe problems such as homelessness.   

What I write about San Francisco may seem harsh and clearly, to some extent, stems from my frustration with the same sorts of problems I see in every American city I visit. The solutions seem so obvious to an outsider, but they are never simple.  San Francisco, in particular, pains me because the city so obviously has many of the ingredients required to make it one of the great cities of the world.  It is surrounded by natural beauty, is a welcoming and accepting place, has a very vibrant city culture by any measure, including a remarkable food scene.

Some tweaks to the system are underway that will make San Francisco a better city. 

For example, an organization called 'Friends of the Urban Forest' (FOF) is helping city residents convert some of that great expanse of concrete in front of their homes into gardens and tree planting spaces. (See picture to right) My friends Buddy and Orie (whose veranda is featured in the first photo of this blog posting) have just participated in a project in their neighborhood with FOF.  The results are wonderful. However, like much of the urban improvements going on in San Francisco, projects like this tend to be driven by the educated and wealthy, and are not benefiting all areas equally.  I rarely saw urban greening projects in the poorer parts of town.  

Another encouraging sign is that the generally rather dreadful Market Street, which I write about above, is undergoing massive development now that will no doubt clean it up and restore some of its traditional role as one of the great streets of San Francisco. New high rises are popping up along several areas of the street, and new shopping and commercial development will follow to bring life back to this area.  

Finally, I've just read that a law involved with major urban planning projects is changing in California to be less car friendly.  This will allow for public transit projects to get approval more easily and speed up developments such as San Francisco's new bus rapid transit line.    

When I look at my pictures from San Francisco, I really miss this city and my good friends there.  I'm hopeful that San Francisco will tackle its quality of life issues and move towards a respectable position in the group of the world's most livable cities.   It has a long way to go.  

When I arrived in Bogotá and started my search for a place to live, an essential element of any candidate apartment was a balcony with plenty of sunshine.  I once lived without outdoor space in Manhattan.  As much as I loved my neighborhood and apartment, with no place to recline in the sun and tend some plants I felt confined.  City life by its nature separates us from the natural world, but even a small balcony or veranda can bring a substantive experience of nature back into one's life.  I have covered my Bogotá balcony with flowering plants, adding color and a refuge for wildlife to a previously barren space, and to my delight it's become a regular stop for green violet-ear hummingbirds, black flowerpiercers, and rufous-collared sparrows - who are at this very moment nibbling on some seeds I left out this morning.  
Balcony biodiversity is one new emphasis of urban environmentalists and it is gaining traction in some cities.  The Royal Horticultural Society in the UK held a competition on balcony biodiversity last year and there are a few British bloggers who cover balcony gardening.  It's not surprising that the UK leads in this (there are few countries as addicted to gardening), but what is encouraging to me is evidence of serious balcony gardening in cities all over the world - and its potential for supporting and increasing biodiversity.    

Last Friday I returned to Bogotá from Santiago, Chile, where I'd spent 10 days on holiday.  Santiago has many faces.   It has a European-style city center, areas more typically Latin American, and a wealthy east that looks much like northern California.  Santiago isn't as fashionable as Buenos Aires, but it does have a sense of order and functionality that makes it seem like many cities in the developed world.  But what most engaged my green eyes was the remarkably verdant balconies throughout the city.  The variety and exuberance of vegetation on these Santiago verandas is really unusual.  In Santiago I don't see much of the highly formal planting style that is more common here in Bogotá.  Instead it's a wild mish-mosh of plants that are allowed to grow and spill out over the edges with seemingly little attempt at reining it all in.

This penchant for green extends to professional buildings, as well.  On the left is the business school of the prestigious Catholic University, which has flowering vines (I don't know the species) as a built-in architectural feature.  Some decorative columns in the plaza in front of this building have small trees growing out of the top of them.  
The city of Santiago has a green plan, Santiago Verde, which nicely complements Santiago's green balconies.  The city is planting 250,000 new trees every year and designing new thematic plazas which will be named after the types of trees planted.  There will be, for example, literary plazas, gastronomic plazas and medicinal plazas, each harboring on average 50 species of trees famous in literature, food and medicine, respectively.  This program is part of Chile's national Proyecto Forestación Urbana, wherein 17 million trees will be planted in Chile's cities.  I saw a lot of progress within the city and in Santiago's outlying areas.    

Some may ask if maintaining and increasing biodiversity in cities really matters.  Wouldn't it be wiser to instead focus on protecting biodiversity in natural areas, such as national parks?  The answer is becoming clear.  As urban areas relentlessly expand into agricultural, forest and natural areas, regional biodiversity is threatened.  Threats - including extinction - to many species are accelerating globally.  There is no denying the trends.  Building urban environments with habitats and sources of food for wildlife helps compensate for the loss of other habitat.  It can also create bridges between areas of remaining natural habitat now separated by human settlements, allowing for safe movement between populations of wildlife.  And as the biggest impediment to changing our destructive environmental trajectory is a lack of awareness and understanding, an urban commitment to maintaining biodiversity helps reconnect city dwellers (the majority of humanity) to the natural world making them feel they have a stake and a role in its future.

As I'm writing about biodiversity I couldn't resist including a  picture of one of Santiago's most unforgettable species:  its street dogs. There are a large number of dogs living on the streets in Santiago, but it's not at all as you would find in a typical developing-world city.  These dogs generally look very healthy and clean, are well behaved, and just seem to be equals among the human pedestrians of the city.  I see this as just another sign of Santiago's civility.   

Santiago is a city nearing its destiny as the first developed-world capital in Latin America.  You can see it in the faces of the people, in the over one-hundred kilometers of shiny metro lines, and in the general sense of civility and calm.  Santiago may not be the most glamorous or exciting city in South America, but it does offer something rather unique in the region:  predictability and confidence in the future.  The green balconies of Santiago announce a city that has come of age.  .  

With a spring-like climate year round, and a setting of rare natural beauty, Santa Cruz de Tenerife was a unexpectedly pleasant discovery for me.  I came to visit my friend Hiromi Hayashi, a Japanese food journalist who I co-wrote a book with in 1991.  She lives in Santa Cruz de Tenerife half the year - just off the pedestrian street you see above.  In no way did I expect to find the lavish attention on greenery in city planning.  Not only are most streets lined with trees, bushes and flowers, but even some buildings spill green off their sides, as you see below. 

In the crowded center, with its narrow streets, a transformation has come about...there are trees, quality paving stones, planters everywhere, and benches for people to enjoy their beautiful city.  My impression is that much of the beautification and greening has occurred in the last decade or so.  This is Spain at its best.