Showing posts with label new urbanism. Show all posts
Showing posts with label new urbanism. Show all posts

Friday, October 9, 2009

Why Climate Change Won't Matter

It seems that we can't turn a corner without climate change being attributed to some problem or something that we are doing having an impact on climate change. Wait, wait. Before you click away and think that this is some skeptic panning the latest report, fear not. If anything this report is one of climate agnosticism. In some regards, I don't know if I care or not about climate change. The reason is because climate change has usurped nearly every other issue.

While scientists and environmentalists fight over how soon the sea level will rise 4 inches, millions of children and adults will face increasing obesity-related illnesses; our seniors will become more isolated and institutionalized; thousands more will die in auto-related accidents, and our cost of living will spiral because of our insatiable demand for cheap oil will be surpassed by the growing third world.

These are the really pressing issues of the next decade. Saving energy with compact florescent lightbulbs and driving a Prius (of which I do both) will have little effect on greenhouse gas emissions and carbon-based energy usage if we continue to build our communities in ways that only further necessitate travel by automobile. As so many others are starting to loudly point out, we can't greenwash our way out of our excess using more consumable gizmos.

“…if sprawling development continues … the projected 48% increase in (VMT) between 2005 and 2030 will overwhelm expected gains from vehicle efficiency and low-carbon fuels.

Even if the most stringent fuel-efficiency proposals under consideration are enacted, vehicle emissions still would be 34% above 1990 levels in 2030 – entirely off-track from reductions of 60-80 percent below 1990 levels by 2050 required for climate protection.”
Growing Cooler: The Evidence on Urban Development and Climate Change" by Reid Ewing, Arthur C. Nelson, and Keith Bartholomew

The truth is that none of the popular solutions being discussed have anything to do with the actual urban form of our communities. Perhaps that is the inconvenient truth. Perhaps the truth is that the anthropogenic impact on our climate is in fact irreversible and changes are inevitable. Which areas are better suited to manage change - the cities or the suburbs? I will continue to argue that the cities must be nurtured and supported because they will not only be havens for resilience in the new economy but they are uniquely positioned to accommodate the human condition regardless of the climatic condition. Lest we not forget that cities have long been the centers of civilization in varying geographies and climates, and during a wide range of economic times. Suburbs, conversely, are generally a monoculture (which as my friend Tony Sease recently pointed was in itself an oxymoron). As such they are predicated on highly leveraged, isolated developments tied together by predominately auto-oriented transportation networks. And like monocultures in nature, they are less resilient to change. One small jump in the price of gas in the summer of 2008 began to unravel the sweater.

Until we start to really address the fundamental issues of community growth and development, our gizmos will remain on the fringe of making any difference. This means that we must begin to radically rethink how we do business. Far too often, we have been forced into a one-sided solution created by a specialist with little regard to the larger picture. Sure, greenways are great, but are they built at the expense of a basic sidewalk network that can be used to walk to a store? Do our stormwater management practices actually encourage more sprawling development patterns at the behest of water quality. Do we build large schools in far flung locations because of land cost and generalized standards? Are we funding road widening and highway expansion because they are shovel-ready? And do we fund transportation improvements along a single corridor rather than seeking out more comprehensive solutions across the network because of short-sighted funding and policy directives.

I firmly believe that sea level rise, variable rainfall, and variable extreme temperatures can all be adapted to by our cities. Cap and trade will not ensure a walkable neighborhood in which our graying population can remain active in through their retirement years. Nor will it prevent obesity and its various illnesses including heart disease and diabetes. According to the March 10, 2004 edition of the Journal of the American Medical Association (Vol 291, No. 10), the number two cause of death in the United States was poor diet and physical inactivity (just slightly behind tobacco) but it represented a larger percentage change from the previous decade - a nearly 33% increase. Interestingly, the second most rapidly growing cause of death is death by automobile which has recorded a nearly 72% increase from 1990 to 2000 growing from 25,000 to 43,000 deaths each year.

We are on track to kill more people with our poorly built communities than with sea level rise and I suspect that driving hybrid cars will have little impact on either of these trends in the next two decades. It's time that we start to have a frank discussion about the realities of today rather than the scientific speculation of tomorrow and let our policies flow from more mutually beneficial solutions. Walkable urbanism is capable of resilience in any climate. And it is better suited to improving the human habitat as well. But, if climate change is due to truly impact us, I firmly believe a city will be the preferred development pattern.

Tuesday, June 9, 2009

How will the next 50 years be different?

Interesting question. Perhaps the bigger question is why the next 50 years must be different. To do so we must have an understanding of the failure of our built (and natural) environment since the end of World War II. I don't need to rehash the well documented impacts that the explosion of suburbia has had on the global economy. To find the best resource on that, check out Suburban Nation, by Andres Duany, Lizz Plater-Zyberk, and Jeff Speck. More importantly, just open the paper.

The most tenuous parts of our economy were based on the suburbs. The auto-industry failed because it over-leveraged itself into gas-guzzling sport utility vehicles sold to people with average commuted in excess of 20 miles each way. Foreclosures are highest in the suburbs because families "drove until they qualified" for a large house or builders/developers constructed subdivisions for whole populations that never arrived (I'll need to cover that more in the myth of popular demographics). Banks and large financial institutions failed because they either bundled highly leveraged mortgages for those people who couldn't afford the home in the first place (mortgage backed securities) and then insured their profitability as credit default swaps. And then someone tugged at the loose string of our economic sweater and it all unraveled.

Perhaps if there is one lesson that we have learned it's that the suburbs are predicated upon an often untenable dream - one that is mired in debt, future costs, monthly payments and IOUs. And I'm not just referring to the average household. And this debt is not always in the form or a financial instrument. Often times our built environment is built on premise that a future generation will pay for what we purchased. Drained wetlands, drought-starved rivers, lost farmlands, dependence on foreign oil (if we still use oil in 50 years) - these are the costs that future generations will be saddled with if we don't continue to change our fundamental approach to growth.

Smart growth, new urbanism, compact communities, sustainable cities - these are all buzzwords that boil down to the need to think strategically and systemically. Yes, growth is indeed good. And to borrow as phrase from Charlotte, NC Mayor Pat McCrory - "if you are not growing (as a city), you are dying." This site is therefore intended to explore the ways in which our communities can grow more sustainably - economically, environmentally, and socially - into the next 50 years. We'll find some lessons and best practices in the past and the present but mostly we'll be inventing a new wheel, a new way of growing our cities and towns. As a city planning practitioner, I'm excited about the possibilities. The moonshot of our generation will not be the compact, florescent light bulb. I believe it will be the compact, efficient community that's paid for by this generation and left to the next as a debt-free inheritance.