Another City is Possible: Cars and Climate

Last week I taught a class at the University of Colorado for a friend.  The class is entitled Another City is Possible: Re-Imagining Detroit. She wanted me to talk about the link between cars and climate change. As usual, I didn’t finish putting the talk together until a couple of hours before the class, but it seemed like it worked out pretty well anyway. In fact, I actually got feedback forms from the class just today, and they were almost uniformly awesome to read. As if I might have actually influenced someone’s thinking on how cars and cities interact, and how cities could really be built for people. It makes me want to figure out a way to teach on a regular basis.  Here’s an outline of what I said, and some further reading for anyone interested.

What is a car?

For the purposes of this discussion, when I say “car” I mean a machine capable of moving at least 4 people at a speed of greater than 80 km/hr (50 mi/hr). This means cars are big (they take up a lot of space) and cars want to go fast (though in reality they go at about biking speed on average, door-to-door, in urban areas). Cars as we know them today are also heavy, usually in excess of 500 kg (1000 lbs) and numerous, because they’re overwhelmingly privately owned. These four characteristics in combination makes widespread everyday use of automobiles utterly incompatible with cities that are good for people. Big, fast, heavy, numerous machines are intrinsically space and energy intensive, and intrinsically dangerous to small, slow, fragile human beings.

The Takeaways:

  • Tailpipe emissions are just the tip of the iceberg — the vast majority of the sustainability problems that cars create have nothing to do with what fuel they use, or how efficiently they use it. Amory Lovins’ carbon-fiber hypercars could run on clean, green unicorn farts, and they’d still be a sustainability disaster.
  • The real problems that come from cars are the land use patterns they demand, and the fact that streets and cities built for cars are intrinsically hostile to human beings. In combination, sprawling, low-density land use and unlivable, dangerous streets functionally preclude the use of transit, walking, and biking as mainstream transportation options. In a city built for cars, you have no choice but to drive.
  • The good news is that another city is not only possible, it already exists. Very modest density (about 50 people per hectare or 10 dwelling units per acre) is enough to drastically reduce car use, and make low energy transportation commonplace. In combination with good traditional urban design, these cities are extremely livable, healthier, cheaper to maintain, much more sustainable, and much safer than our cities.
  • The bad news is Peak Oil is not going to save us. There are a whole lot of unconventional hydrocarbons out there in the oil shale of the Dakotas, the tar sands of Alberta, the ultra-heavy crude of Venezuela’s Orinoco basin, and the ultra-deep water reservoirs off the coast of Brazil, etc. We’d be crazy to burn them all, but hey, maybe we’re crazy. And even if we did run out of oil, it’s entirely possible to electrify our cars for everyday urban use, even with today’s mediocre battery technology. If we want a different kind of city, we’re going to have to choose to build it.

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Shades of Green

There are a lot of voices in the climate and sustainability discussion.  I’ve been thinking about where in the spectrum I fall, and why.  Who are the people I’m trying to convince?  What camp do opponents imagine I’m in?  Even amongst those of us who agree that the energy and climate problem is enormous, there’s disagreement about whether change in our daily lives is necessary, desirable, or acceptable.

Below is a list of people I’ve personally been influenced by.  Everyone here agrees that the current system has to change, that the magnitude of the required change is large, and that the direction of the change is unequivocally away from fossil energy sources.  Where we differ is on what part of the system needs to change, and why.  In particular, there seems to be a range of positions taken on the issue of social change.  The Pessimists think that no technical solution comes close to being adequate, that large social changes are thus obligatory, and that they will be interpreted negatively by most people.  The Optimists think that the best solutions include both technical and social components, and that the required social changes are relatively modest, and not necessarily negative at all.  Some Optimists advocate for social change overtly, while others imply that purely technical options look implausible without it.  The Cornucopians discount the need for social change, and are thus left with the technical task of supplying virtually unlimited carbon-free energy.

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Carbon dioxide data is not on the world’s dashboard

CO2 Emissions Since 1820
An interactive data visualization, exploring almost 200 years worth of global CO2 emissions, from Gapminder World.

Hans Rosling, world famous Swedish demographer (how many celebrity statisticians are there?) and creator of the Gapminder data visualization tool, offers some thoughts on the importance of timely and transparent reporting of CO2 emissions.  If you’re not familiar with his eye-opening presentations already, check out his several TED Talks on YouTube, or explore two centuries worth of CO2 emissions data visually.

Rosling wants all kinds of public data not only to be easily available, but woven into stories that engage the public:

It’s like that basic rule in nutrition: Food that is not eaten has no nutritional value. Data which is not understood has no value.

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Enhanced Geothermal Systems promise dispatchable zero carbon power

Icelandic Geothermal Power Plant by Scott Ableman at Flickr

Geothermal energy is the Earth’s own internal heat. It’s a huge potential resource, but so far it’s seen only very limited use. Traditional geothermal power can only work where there are naturally existing hydrothermal systems that bring the heat of the interior to the surface. A new technique called enhanced (or engineered) geothermal systems (EGS) may make geothermal power much more widely available. If it can be scaled up commercially, EGS will enable us to create hydrothermal systems anywhere there’s hot rock not too deeply buried — which includes a large swath of Colorado. This is potentially significant in the context of creating a zero-carbon electrical system because like hydroelectricity, and unlike wind and solar, geothermal power can be dispatchable: you can turn it on and off at will. This makes it a great complement to intermittent renewable power, as it can be used to fill in the gaps then the wind’s not blowing or the sun’s not shining.  It remains to be seen whether it’s technically feasible, and if so at what price, and on what timeline, but it’s certainly worth investigating.

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Boulder Biketopia at the ULI Salon

Boulder’s newly minted chapter of the Urban Land Institute (ULI) hosted its second salon on December 6th, entitled Biketopia: Dramatically Increasing Boulder’s Bike Mode Share.  Martha Roskowski — the former head of GO Boulder, who now works on protected on-street bike facilities nationwide with Bikes Belong — outlined a plan for pushing Boulder beyond it’s status as a leading bike community in North America, and toward taking a place amongst the world’s best cities for cycling.

Why should we choose to do this?  Getting more people on bikes benefits both individuals and the community. Bikes provide inexpensive mobility for short trips, help address health issues, and reduce congestion. New studies are showing that getting more people on bikes increases the economic vitality of cities in many ways, including attracting “choice” employers and supporting local businesses. Boulder’s status as a leader in climate change can also be reinforced by a visionary approach.

While Boulder’s bike mode share is one of the best in the nation, it trails well behind leading European cities. And Boulder’s growth in bicycling has been stagnant over the past several years, by a number of measures. Boulder is no longer a national leader in its commitment and vision to increase the number of people on bikes. Chicago, San Francisco, Austin, Boston, Washington DC, Philadelphia and others are taking far more bold steps to intentionally and systematically make their communities better for bicycling.

Boulder has a choice: we can continue the current pace of slow but steady improvements in infrastructure and rely on external forces like the price of gas and personal concerns about climate change to increase bike mode share. Or, Boulder could become a new national model for a bicycle-friendly community. Boulder has the potential to dramatically increase its bike mode share, perhaps more so than any other community in the country. It has “good bones” in its off-street pathway system, its compact size, growth boundaries, culture of cycling and already large bicycling population.

Martha gave eleven suggestions for taking cycling in Boulder beyond being an “alternative” mode and toward normalizing it to the point where it’s a vital, indispensable part of our transportation system. It can be made accessible to just about anyone as it is already in much of the Netherlands, Germany and Denmark, where many cities have between a quarter and half of their daily trips being made by bike.  Here’s a short summary of what she had to say, hopelessly intermingled with my own musings, since my notes are now a month old.

Continue reading Boulder Biketopia at the ULI Salon

Passive Passion a short film about Germany’s Passivhaus Building Energy Efficiency Standard

A beautifully finished Passivhaus building in Dresden, Germany.  With all the PV on the roof, this is almost certainly a net positive energy building.
A beautifully finished Passivhaus building in Dresden, Germany. With all the PV and solar-thermal on the roof, this is almost certainly a net positive energy building.

Passive Passion is a good 20 minute long film introduction to the German Passivhaus energy efficiency standard, which reduces building energy use by 80-95% (depending on what existing code you compare it to).  It looks at the roots of the design standard in Germany, and gives a few examples from the tens of thousands of Passivhaus certified buildings in Europe, including single family homes, row houses, apartment buildings, public low income housing, and office buildings.  They talk about what makes the standard work: airtight building envelopes, super insulation, no thermal bridging, heat recovering ventilation.  The film also looks at a few builders and designers in the US trying to popularize the cost effective implementation of these methods. It’s clearly possible.  The examples are out there today.  We just have to decide to do it!  If we’re going to get to carbon zero, someday our buildings will all have to function something like this.

The film can be viewed online thanks to the enlightened self interest of Four Seven Five, a high performance building components supplier in New York.

ALEC attacking renewable energy standards nationwide

The American Legislative Exchange Council (ALEC) is at it again, trying to roll back state renewable energy standards nationwide.  The argument behind their model bill, entitled the Electricity Freedom Act, is that renewable energy is simply too expensive.  The Skeptical Science blog offers a good short debunking of this claim, based on the cost of electricity in states with aggressive renewable energy goals, and how those costs have changed over the last decade.  And this is before any social cost of carbon or other more traditional pollutants is incorporated into the price of fossil fuel based electricity.

US States with renewable portfolio standards or binding goals.

Their summary:

  • States with a larger proportion of renewable electricity generation do not have detectably higher electric rates.
  • Deploying renewable energy sources has not caused electricity prices to increase in those states any faster than in states which continue to rely on fossil fuels.
  • Although renewable sources receive larger direct government subsidies per unit of electricity generation, fossil fuels receive larger net subsidies, and have received far higher total historical subsidies.
  • When including indirect subsidies such as the social cost of carbon via climate change, fossil fuels are far more heavily subsidized than renewable energy.
  • Therefore, transitioning to renewable energy sources, including with renewable electricity standards, has not caused significant electricity rate increases, and overall will likely save money as compared to continuing to rely on fossil fuels, particularly expensive coal.

But really, go read the entire post for more detail.

Doing the Math on Climate Divestment

I just got back from the 350.org Do The Math event in Boulder.  The touring show is an outgrowth of Bill McKibben’s piece in Rolling Stone this summer, Global Warming’s Terrifying New Math.  The argument is elegant and horrifying: if we want to keep global temperature from rising more than 2°C, we can emit at most 565 more gigatons of CO2, ever.  Currently, the global fossil fuel industry’s reserves total nearly 2800 gigatons.  That carbon accounts for a substantial fraction of their overall market value, and at least 80% of it must never be extracted.  Ergo, we must necessarily bankrupt pretty much all of them, and soon.  At our present burn rate, we’ll have used up the 565 Gt allowance in about 15 years, taking us well into that part of the map where, as they say, there be dragons.

I get all of the above, and am enthusiastically in support.  However, I’m confused by the logic of McKibben’s suggested first salvo against the industry.  He is promoting a divestment campaign, along the lines of the one aimed at apartheid South Africa in the 1980s.  In this campaign, institutional investors susceptible to moral or public relations arguments — like pension funds, church congregations and university endowments — are being encouraged to purge their portfolios of fossil fuel related securities.  There seems to be widespread confusion as to what this would mean in a purely financial sense to the targeted companies.  Certainly the audience was confused, but I couldn’t tell what McKibben and the other folks on stage really thought.

So, what would happen if a major swath of the world’s institutional investors dumped their fossil fuel stocks?  Presumably, this would depress the industry’s stock prices, by reducing demand.  But would this actually hurt the companies in any way?  The simple answer is no.  Most people I talked to seemed to think that by selling stock, they’d somehow be taking money away from these companies.  That’s just not how stock works.  The only time you’re buying stock from the company itself, and giving it funding, is at the initial public offering (IPO), or, occasionally, in subsequent public financing rounds, where new shares are issued, diluting existing shares.  Institutional investors owning shares of publicly traded companies are trading with other investors, not the company itself.  You can’t go to a company and say “I want my money back” after they’ve issued the stock.  Sometimes companies that are sitting on a mountain of cash will voluntarily buy back their own stock, but this results in the value of remaining outstanding shares appreciating — you’re sharing ownership of the same business over fewer shareholders.  Buybacks are often used as a tax efficient way to return earnings to investors, since dividends are taxed as income, but share price appreciation is taxed as capital gains, and those taxes can be deferred indefinitely.

The stock price of a company that’s in financial trouble goes down, reflecting that financial trouble.  Artificially depressing that company’s stock price doesn’t induce financial trouble.  What would it do?  It would lower the price to earnings (P/E) ratio, which would increase the dividend rate.  It would make the companies with stable underlying businesses more attractive stock purchases, and in a purely financial world, other less morally encumbered investors would buy up all the dumped shares, probably severely limiting any depression of the stock price.

The fact that climate divestment won’t starve the fossil fuels industry of capital doesn’t necessarily make it a bad idea.  So what are the other potential consequences of a successful divestment campaign?

Getting churches, universities, pension funds and other institutional investors to divest would decouple their financial interests from those of the fossil fuels industry.  This might make it easier for divested institutions to take strong political stances on climate change.  At the same time, as an individual, unless you have a lot of money invested, or live in a very efficient house and refuse to drive and fly, you’re more tightly bound to the financial interests of these companies via the prices of the fossil fuels you consume, than by the prices of the stocks of the companies that produce them.

If you’re feeling optimistic, getting institutions you care about (or depend on) to divest from the carbon industry might be seen as self-interested.  If we succeed in keeping 80% of the world’s booked fossil fuel reserves in the ground, then all these companies are the walking dead.  Like the hordes of zombie banks created in the financial collapse a few years ago, in a world that rises to meet the climate challenge, they are already bankrupt — they just don’t know it yet.  If you really believe we’re going to succeed, divesting is clearly the right thing to do financially in the medium to long run.

Probably most importantly, the campaign is aimed at branding fossil fuels as a morally repugnant investment, both explicitly and by analogy with the apartheid divestment movement.  In the case of South Africa, it was successfully argued that companies taking advantage of apartheid were benefiting from a form of legalized slavery, and anybody sharing in those profits was, in some part, morally equivalent to a slaveholder.  In the case of the Carbon Lobby we’re not slaveholders, we’re waging a war on the future.  This is particularly ironic in the case of university endowments, which support the education of young people, who will live further into that war-torn future than the rest of us, and pension funds that ostensibly work to ensure we are supported in our old age, as much as 50 years hence.

Morally repugnant industries are often allowed to operate, but their political influence becomes diminished and expensive.  Unless you’re actually representing a tobacco growing district, it’s tough to stand up publicly these days as a politician and rub shoulders with tobacco companies.  Their veneer of respectability has been peeled away.  This has made advertizing restrictions and smoking bans and hefty sin taxes politically possible.  If fossil fuel extraction were broadly accepted as a repugnant transaction, would it remain politically feasible to continue spending  five times as much on fossil fuel subsidies as we do on climate mitigation?

In the case of the technology driven oil and gas development and exploration, one might hope that a successful re-branding of the carbon industries as repugnant dinosaurs waging a war on the future would make it more difficult for these companies to recruit young technologically savvy talent, at any price.  Will petroleum and coal mining engineers one day feel unable to mention their work, for fear of public shaming?

This shift in our cultural norms about whether releasing geologically sequestered carbon is morally defensible is necessary, I think, but like virtually all climate campaigns it is not alone sufficient.  Especially in the energy-intensive developed economies, shaming and shunning the fossil fuel industry must also involve some amount of self-flagellation today.  It runs the risk of guilt-tripping people whenever they buy gas or fly, or leave the coal-fired lights on in the kitchen overnight.  That guilt can induce people to tune out, if they don’t feel like they have any alternative to their “bad” behavior.

We need to aggressively create those alternatives by creating paths to high-renewable penetration electricity, building cities for people that don’t depend on cars, inter-city high-speed rail that doesn’t suck, re-solarizing our agricultural systems, requiring the highest possible building energy efficiency, and mandating closed-loop zero-waste materials systems whenever they’re possible.  We also need to make sure we brand the fossil fuel industry as other.  We need a Them.  They take hundreds of billions of dollars in subsidies every year.  They fund disinformation campaigns on climate.  They spend half a million dollars a day lobbying congress.  They are the problem, preventing necessary change, preventing us from adopting systems that don’t wage war on the future.  This otherness can forestall that feeling of short-term guilt.

This may sound like irresponsible heresy in the face of a tidal wave of consumer green marketing.  However, the vast majority of our emissions and resource utilization are systemically determined, and are not susceptible to significant change through personal choices alone.  Those necessary systemic changes are being blocked in large part by industry lobbying and disinformation.  In that arena of systemic change, which is what matters most, it really is Us vs. Them.

Ripe for Retirement: The Case for Closing America’s Costliest Coal Plants

Ripe-for-Retirement Generating Capacity Is Concentrated in Eastern States
UCS identified up to 353 coal-fired generators nationwide that are uneconomic compared with cleaner alternatives and are therefore ripe for retirement. These units are in addition to 288 coal generators that utilities have already announced will be retired. Under the high estimate, there are 19 states with more than 1,000 MW of ripe-for-retirement coal-fired generating capacity, all in the eastern half of the United States.

The Union of Concerned Scientists has gone through the catalog of America’s coal plants, and found hundreds of mostly small, old, polluting, inefficient generating units that just aren’t worth operating any more, even on a purely economic basis. They looked at several different sets of assumptions, including different natural gas prices going forward, a price on carbon, whether or not the competing natural gas fired generation would need to built new, or whether it existed already with its capital costs paid off, and whether or not the production tax credit for wind ends up being renewed. In all of the scenarios considered, they found substantial coal fired generation that should be shut down on purely economic grounds, above and beyond the 288 generating units that are already slated for retirement in the next few years. They also found that some companies — especially those in traditionally regulated monopoly utility markets in the Southeast — are particularly reluctant to retire uneconomic plants, and suggest this may be because they can effectively pass on their costs to ratepayers, who remain none the wiser.

Climate Change and the Insurance Industry

http://flickr.com/photos/that_chrysler_guy/8139133299/

As the entire eastern seaboard slowly recovers from its lashing by Sandy, insurance companies are bracing for the hurricane’s aftermath and the possibility of another Katrina-scale loss.  If there’s any major incumbent business with an incentive to publicly acknowledge the risks and costs of climate change, it’s the insurance industry, and especially the re-insurers — mega-corps that backstop individual insurance companies by pooling their risks globally.  These companies can do the math, and what they’ve seen over the last couple of decades is a steady upward trend in both the number of extreme weather events and the resulting insured losses that they’ve been on the hook to cover.  The situation is well summarized in a new report from Ceres, entitled Stormy Futures for U.S. Property/Casualty Insurers.  They suggest that insurers face an existential risk from climate change.

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