Tag Archives: ecosystem services

designing fragmented ecosystems

This article in Trends in Ecology and Evolution is about purposely controlling spatial fragmentation in ecosystems in order to maximize ecosystem services. If I understand correctly, their hypothesis seems to be that a system that is fragmented in a carefully designed way could provide more ecosystem services than an unfragmented system.

Landscape structure and fragmentation have important effects on ecosystem services, with a common assumption being that fragmentation reduces service provision. This is based on fragmentation’s expected effects on ecosystem service supply, but ignores how fragmentation influences the flow of services to people. Here we develop a new conceptual framework that explicitly considers the links between landscape fragmentation, the supply of services, and the flow of services to people. We argue that fragmentation’s effects on ecosystem service flow can be positive or negative, and use our framework to construct testable hypotheses about the effects of fragmentation on final ecosystem service provision. Empirical efforts to apply and test this framework are critical to improving landscape management for multiple ecosystem services.

This idea is important to the idea that we could hypothetically design a civilization that is not only less bad than the one we have now, but one that is actually good for the planet and people.

2014 Report Card

It’s taken me a while to get out a “year in review” post for 2014, but anyway, here it is. This won’t be a masterpiece of the essay form. I’m just going to ramble on about some interesting trends and themes from the year, along with a few relevant links.

The critical question this blog tries to answer is, is our civilization failing or not? I’ll talk about our human economy, our planetary system, and make some attempt to tie the two together.

Overall Human Health and Wellbeing. First, there are some very happy statistics to report. For example, worldwide child mortality has dropped almost by half just since 1990. What better measure of progress could there be than more happy, healthy childhoods? And it’s not just about increasing wealth – people in developing countries today have much better health outcomes at the same level of wealth compared to developing countries of the past (for example, Indonesia today vs. the United States when it passed the same income level). It’s hard to argue against the idea that economic growth and technological change have obviously eliminated a lot of human suffering. So, I think the important questions are, will these trends continue? Is the system stable? Can the natural environment continue to support this trend indefinitely? There may also be an important question of whether we had the right to exploit the natural environment to get us to the point where we are now, but that is an academic question at this point.

Financial System Instability. Let’s talk about the stability of our human economic system. The U.S. economy may finally seem to be picking up from the aftermath of the severe 2007-8 financial crisis, but it is certainly far below where it would be if that hadn’t happened and the prior growth trend had just continued since then. The rest of the world isn’t doing so well, however – Europe and Japan are looking particularly slow if not in an outright deflationary spiral, at the same time developing countries appear to be slowing down. Some are calling this a “new normal” for the world economy. More scary than that, the industry-written regulations and perverse incentives allowing the excessive risk taking that caused the crisis have not been fully addressed and the whole episode could recur in the short term.

Thoughts on Ecosystem and Economic “Pulsing”. 2007-8 was a textbook financial crisis – although it was caused by novel forms of money and risk taking beyond the direct reach of government regulators and central banks, it was not that different from crises caused by plain old speculation and over-lending back when there were no central banks around. It’s hard to draw a direct link from the financial crisis to ecosystem services, climate change, or natural resource scarcity. However, if we think about natural ecosystems, they are resilient to outside stressors up to a point – say, moderate fluctuations in temperature, hydrology, or pressure from non-native species. However, say a major fluctuation happens such as a major flood or fire that causes serious damage. In the absence of major outside stressors, the system will eventually recover to its original state, but in the presence of major outside stressors, even if they did not cause the flood or fire, it may never bounce back all the way. In the same way, our human economy may appear resilient to the effects of climate change, ocean acidification, soil erosion, and so forth for a long time, but then when something comes out of left field, like a major financial crisis, war, or epidemic, we may not be able to recover to our previous trend. This probably also applies to the effects of technology on employment, as discussed below. In the absence of major shocks coming from outside the system, we’ll see a long, slow slide in employment and possibly a long, slow rise in energy and food prices, with so much noise in the signal that it will be easy for the naysayers to hold sway for long periods of time. But when those major events happen, we may see sudden, painful changes that we have no obvious way of mitigating quickly.

Technological Change: Artificial Intelligence, Robots, Automation, and Employment. After decades of slow but steady progress, these technologies are really coming into their own. Robots are being used to keep miners in line and to drive cars, for example. Manufacturing has become a high-tech industry. As computers and machines get better at performing more and more skilled jobs (book-keeping is one example), there is gradually less demand for the medium-skilled workers who used to do those jobs. High-skilled workers like computer programmers are doing very well, although I presume the automation will gradually creep higher and higher up the chain, so today’s safer jobs will be less safe tomorrow. At the same time these medium-skilled workers in developed countries are getting squeezed out, developing countries are not benefiting like they used to from their large pools of low-skilled workers as manufacturing becomes more and more automated, and can be done cost-effectively closer to consumers in richer countries.

Will our society recognize and solve this employment problem? American corporate society, and its admirers around the world, are unlikely to. Something very similar to this happened with agricultural automation in the early- to mid-20th century, and with globalization in the mid- to late-20th century. As agriculture became more automated, many displaced workers moved from rural areas in the U.S. southeast to urban areas in the U.S. northeast, looking for factory work. Unfortunately, the factory jobs that existed previously were being moved to developing countries with abundant low-wage labor. The pockets of poverty, unemployment, and social problems created by these forces have not been adequately addressed to this day. To the individual worker, it doesn’t much matter whether your job is being taken by a local robot or an overseas human. Unemployment created by technological forces today could resemble what was created by globalization yesterday, only on a much larger scale. We can only hope that the larger scale will drive real political solutions, such as better education and training, sharing of available work, and more widespread ownership of the labor-saving technology.

Of course, one of the earliest and probably the most shameful example of a modern capitalist system generating wealth for an elite few at the expense of workers is the American slavery system of the 18th and 19th centuries. We just can’t trust amoral, self-interested private enterprise to maximize welfare in the absence of a strong moral compass coming from the larger society. Let’s stop pretending otherwise.

Another example of extreme corporate immorality: Public apathy over climate change in the U.S. may have been manufactured by a cynical, immoral corporate disinformation campaign over climate change taken right out of the tobacco companies’ playbook.

The Gospel of Shareholder Value. There is an important debate over whether people who run corporations have any ethical responsibility to anything other than profit seeking. Well duh, everyone on Earth has an ethical responsibility. Case closed, as far as I’m concerned. There is even evidence that the ideology of profit maximization is a drag on innovation. Except billions of people out there who have worshiped at business schools would disagree with me. And I don’t want to offend anyone’s religion. Noam Chomsky had a quote that I particularly loved, so I am going to repeat it here:

In market systems, you don’t take account of what economists call externalities. So say you sell me a car. In a market system, we’re supposed to look after our own interests, so I make the best deal I can for me; you make the best deal you can for you. We do not take into account the effect on him. That’s not part of a market transaction. Well, there is an effect on him: there’s another car on the road; there’s a greater possibility of accidents; there’s more pollution; there’s more traffic jams. For him individually, it might be a slight increase, but this is extended over the whole population. Now, when you get to other kinds of transactions, the externalities get much larger. So take the financial crisis. One of the reasons for it is that — there are several, but one is — say if Goldman Sachs makes a risky transaction, they — if they’re paying attention — cover their own potential losses. They do not take into account what’s called systemic risk, that is, the possibility that the whole system will crash if one of their risky transactions goes bad. That just about happened with AIG, the huge insurance company. They were involved in risky transactions which they couldn’t cover. The whole system was really going to collapse, but of course state power intervened to rescue them. The task of the state is to rescue the rich and the powerful and to protect them, and if that violates market principles, okay, we don’t care about market principles. The market principles are essentially for the poor. But systemic risk is an externality that’s not considered, which would take down the system repeatedly, if you didn’t have state power intervening. Well there’s another one, that’s even bigger — that’s destruction of the environment. Destruction of the environment is an externality: in market interactions, you don’t pay attention to it. So take tar sands. If you’re a major energy corporation and you can make profit out of exploiting tar sands, you simply do not take into account the fact that your grandchildren may not have a possibility of survival — that’s an externality. And in the moral calculus of capitalism, greater profits in the next quarter outweigh the fate of your grandchildren — and of course it’s not your grandchildren, but everyone’s.

Our Ecological Footprint. WWF issued an updated Living Planet Report in 2014 suggesting that our annual consumption of natural resources (including the obvious ones like energy and water extraction, straightforward ones like the ability to grow food, but also the less obvious ones like ability of the oceans and atmosphere to absorb our waste products) is continuing to exceed what the Earth can handle each year by at least 50%. We’re like spoiled trust fund babies – we have such incredible resources at our disposable, we never learn to live within our means and one day the resources run out, even if that takes a long time. As we recover from the financial crisis, we have a chance to do things differently, but the connections are not being made to the right kinds of investments in infrastructure, skills, and protection of natural capital that would set the stage for long-term sustainable growth in the future.

Other Big Stories from 2014:

  • World War I. 100 years ago, World War I was in full swing. Remember The Guns of August? Well, that was August 1914 they were talking about. Let’s hope we’re not about to blunder into another conflict. But (and I’m cheating a little here because I read this in 2015), the World Economic Forum named “interstate conflict” as both high probability and high consequence in its global risk report.
  • Ebola. Obviously, Ebola was a very bad thing that happened to a whole lot of people. To those of us lucky enough that we weren’t directly in its path, it is a chance to selfishly reflect whether Ebola or something even worse could be coming down the pike. Let’s hope not.
  • Severe Drought and Water Depletion in the Western U.S.: California has been in the midst of a historic drought, although they got some rain recently. Some are describing this as the new normal. Besides rainfall, glaciers, snowpack, and groundwater all seem to be disappearing in some important food-growing areas.
  • Solar grid parity is here! At least some places, some times…

Conclusion. Yes, I think we are on a path to collapse if nothing changes. And I don’t see things changing enough, or fast enough. There are glimmers of hope though. Lest you think I offer only negatives and no solutions, here are two solutions I harp on constantly throughout the blog:

  • Green infrastructure. This is how we fix the hydrologic cycle, close the loop on nutrients, begin to cleanse the atmosphere, protect wild creatures and genetic diversity, and create a society of people with some sense of connection to and stewardship over nature. Don’t act like it’s such a big mystery. It’s known technology. There has been plenty written about trees, design of wildlife corridors and connectivity, for examples. There is simply no excuse for cities to do such a crappy job with these things.
  • Muscle-Powered Transportation. Cars are clearly the root of all evil, the spawn of Mordor, as I pointed out several times (sorry, I just sat through 6+ hours of Hobbit movies). Unless you are perhaps that rare hobbit who can own a car without your morals being completed corrupted by its evil powers. But for the rest of us, I explained several times why getting rid of cars would be good. Here is just one example:

One of the most important things we can do to build a sustainable, resilient society is to design communities where most people can make most of their daily trips under their own power – on foot or by bicycle. It eliminates a huge amount of carbon emissions. It opens up enormous quantities of land to new possibilities other than roads and parking, which right now take up half or more of the land in urban areas. It reduces air pollution and increases physical activity, two things that are taking years off our lives. It eliminates crashes between vehicles, and crashes between vehicles and human bodies, which are serial killers of one million people worldwide every year, especially serial killers of children. It eliminates enormous amounts of dead, wasted time, because commuting is now a physically and mentally beneficial use of time. There is also a subtle effect, I believe, of creating more social interaction and trust and empathy between people just because they come into more contact, and creating a more vibrant, creative and innovative economy that might have a shot at solving our civilization’s more pressing problems.

Bitcoin and “trustless trust”

This article from Beautiful Data-R talks about how Bitcoin’s algorithms are supposed to generate trust:

The crypto-currency Bitcoin and the way it generates “trustless trust” is one of the hottest topics when it comes to technological innovations right now. The way Bitcoin transactions always backtrace the whole transaction list since the first discovered block (the Genesis block) does not only work for finance. The first startups such as Blockstream already work on ways how to use this mechanism of “trustless trust” (i.e. you can trust the system without having to trust the participants) on related fields such as corporate equity.

It’s an interesting idea – can we design better markets such that participation in the market pushes people toward more trustworthy or ethical behavior? Could you build carbon credits or “embodied energy” values into such a market, for example? This sounds a lot like Adam Smith’s invisible hand – markets themselves were supposed to do this, but the problem today is that there are too many people (living and future) and plants and animals being harmed by markets without participating in them.

sea vs. land warming

According to a guy named Ka-Kit Tung, we have seen less land surface warming than expected in the last 15 years because the heat has gone into the oceans instead. He thinks the trend of land surface warming will eventually resume. Is he worried about some sudden reversal where the heat trapped in the ocean would suddenly be released? No.

Nobody knows how long the current pause will last. Nonetheless, at some point, the natural cycles will shift; the oceans will cease to absorb the bulk of the planet’s warming; and surface temperatures will begin to climb again. When they do, we can expect the increase to resume the rapid pace observed during the late twentieth century, when surface temperature rose by about 0.17 degrees Celsius every ten years.

In the meantime, whether the overall risk to our environment has been reduced by the pause remains an open question. Some argue that what went down will eventually come back up. The sloshing back and forth of warm and cold waters – El Niño and La Niña – in the shallow layer of the equatorial Pacific Ocean will continue to produce fluctuations in surface temperatures every year. Over longer periods, however, the risk that the heat currently stored in the deep ocean will resurface is remote.

Who is this guy? He is “a fellow of the American Meteorological Society, is Professor of Applied Mathematics and an adjunct professor of Atmospheric Sciences at the University of Washington.”

If we are saying some end of year thank yous, I would just like to say, thank you, ocean, for keeping our planet habitable for another year.

November 2014 in Review

At the end of October, my Hope for the Future Index stood at -2.  I’ll give November posts a score from -3 to +3 based on how negative or positive they are.

Negative trends and predictions (-6):

  • There is mounting evidence that the world economy is slowing, financial corporations are still engaged in all sorts of dirty tricks, and overall investment may be dropping. Financial authorities are trying to respond through financial means, but the connections are not being made to the right kinds of investments in infrastructure, skills, and protection of natural capital that would set the stage for long-term sustainable growth in the future. (-2)
  • Public apathy over climate change in the U.S. may have been manufactured by a cynical, immoral corporate disinformation campaign over climate change taken right out of the tobacco companies’ playbook. It’s true that the tobacco companies ultimately were called to account, but not until millions of lives were lost. Will it be billions this time? (-2)
  • Glenn Beck has gone even further off his rocker, producing a video suggesting the U.N. is going to ration food and burn old people alive while playing vaguely middle eastern music. One negative point because some people out there might not laugh. (-1)
  • The new IPCC report predicts generally negative effects of climate change on crops and fisheries. The good news is it doesn’t seem to predict catastrophic collapse, but we need to remember that the food supply needs to grow substantially in the coming decades, not just hold steady, so any headwinds making that more difficult are potentially threatening. (-1)

Positive trends and predictions (+6):

  • A lot is known about how to grow healthy trees in the most urbanized environments. But only a few cities really take advantage of this readily available knowledge. (+0)
  • As manufacturing becomes increasingly high-tech, automation vs. employment is emerging as a big theme for the future. The balance may swing back and forth over time, but in the long term I think automation has to win. New wealth will be created, but the question is how broadly it will be shared. The question is not just an economic one – it depends on the kind of social and political systems people will live under in various places. This might be why the field of economics was originally called “political economy”. So I’m putting this in the positive column but giving it no points because the jury is out. (+0)
  • Google is working on nanobots that can swim around in your blood and give an early diagnosis of cancer and other diseases. (+1)
  • Economic slowing is probably the main reason why oil prices are way down. Increased supply capacity from the U.S. also probably plays a role, although there are dissenting voices how long that is going to last. I find it hard to say whether cheaper oil is good or bad. I tend to think it is just meaningless noise on the longer time scale, but you won’t hear me complain if it brings down the price of transportation and groceries for a year or two. (+0)
  • Millennials aren’t buying cars in large numbers. I don’t believe for a second that this means they are less materialistic than past generations, but I think a shift in consumption from cars to almost anything else is a net gain for sustainability. (+2)
  • I discovered the FRAGSTATS package for comprehensive spatial analysis of ecosystems and habitats. This gives us quantitative tools to design green webs that work well for both people and wildlife. Bringing land back into our economic framework in an explicit way might also help. (+1)
  • Perennial polyculture” gardens may be able to provide food year round on small urban footprints in temperate climates. (+1)
  • A vision for smart, sustainable infrastructure involves walkable communities, closing water and material loops, and using energy wisely. Pretty much the same points I made in my book, which I don’t actively promote on this site;) (+1)

Hope for the Future Index (end of October 2014): -2

change during November 2014: -6 + 6 = 0

Hope for the Future Index (end of November 2014): -2 + 0 = -2

habitat loss and animal welfare

Brian Czech makes the point that habitat loss causes a lot of animal suffering. I think this is almost certainly true, and sad. He mostly blames urbanization. I want to argue with that, because a compact, well-designed city should have a relatively small ecological footprint per person living in it, compared to people spread out over a more rural landscape. For example, the Amish way of farming actually is a big contributor to the water pollution destroying the Chesapeake Bay. If there are going to be 7 billion of us, or 10 billion, we can’t all live like the Amish or it would be an ecological disaster. Of course, it is true that the relatively low-impact lifestyle in the city is supported by an enormous rural base of agriculture, forestry, fishing, resource extraction, mining, and manufacturing that has a huge and growing ecological footprint. It’s possible to envision a world where we eventually turn the corner and manage to grow in quality without growing our physical footprint. But we are far from that, and natural ecosystems are certainly the big losers whether or not we are actually on the verge of destroying ourselves.

land economics

Here’s a long open article from Ecological Economics about studying the competition for land. Land exists at the intersection of economics and ecology, and it is conspicuously absent from a lot of economic thinking. It can be thought of as capital, in a sense, but obviously it is not manufactured capital. We can’t make more of it, but we can intensify our activities on a given piece of it (for example, more intense agriculture or taller buildings). Land is the obvious source of a lot of ecosystem services, but the value of those services tends to accrue regionally or globally rather than to the landowner. These are my own thoughts, but anyway here is the abstract:

Possible negative effects of increased competition for land include pressures on biodiversity, rising food prices and GHG emissions. However, neoclassical economists often highlight positive aspects of competition, e.g. increased efficiency and innovation. Competition for land occurs when several agents demand the same good or service produced from a limited area. It implies that when one agent acquires scarce resources from land, less resource is available for competing agents. The resource competed for is often not land but rather its function for biomass production, which may be supplanted by other inputs that raise yields. Increased competition may stimulate efficiency but negative environmental effects are likely in the absence of appropriate regulations. Competition between affluent countries with poor people in subsistence economies likely results in adverse social and development outcomes if not mitigated through effective policies. The socioecological metabolism approach is a framework to analyze land-related limits and functions in particular with respect to production and consumption of biomass and carbon sequestration. It can generate databases that consistently link land used with biomass flows which are useful in understanding interlinkages between different products and services and thereby help to analyze systemic feedbacks in the global land system.

more from Herman Daly on natural capital

Herman Daly reminds us that the concept of natural capital does not necessarily have to be measured in money:

it is worth clarifying that the word “capital” in its original non-monetary sense means “a stock or fund that yields a flow of useful goods or services into the future.” The word “capital” derives from “capita” meaning “heads,” referring to heads of cattle in a herd. The herd is the capital stock; the sustainable annual increase in the herd is the flow of useful goods or “income” yielded by the capital stock–all in physical, not monetary, terms. The same physical definition of natural capital applies to a forest that gives a sustainable yield of cut timber, or a fish population that yields a sustainable catch. This use of the term “natural capital” is based on the relations of physical stocks and flows, and is independent of prices and monetary valuation. Its main use has been to call attention to and oppose the unsustainable drawdown of natural capital that is falsely counted as income.

This is a long article that covers a pretty wide range of loosely related topics. But Herman Daly is always worth a read.

Krugman vs. limits to growth

Paul Krugman has weighed in with an anecdotal example of how companies can find ways to conserve energy:

After 2008, when oil prices rose sharply, shipping companies — which send massive container ships on regular “pendulum routes”, taking stuff (say) from Rotterdam to China and back again — responded by reducing the speed of their ships. It turns out that steaming more slowly reduces fuel consumption more than proportionately to the reduction in speed

Interesting, but Mark Buchanan makes the point that total energy use keeps increasing even as efficiency per unit of GDP decreases (the Krugman article was actually a response to this one):

Growth inevitably entails doing more stuff of one kind or another, whether it’s manufacturing things or transporting people or feeding electricity to Facebook server farms or providing legal services. All this activity requires energy. We are getting more efficient in using it: The available data suggest that the U.S. uses about half as much per dollar of economic output as it did 30 years ago. Still, the total amount of energy we consume increases every year.

Data from more than 200 nations from 1980 to 2003 fit a consistent pattern: On average, energy use increases about 70 percent every time economic output doubles. This is consistent with other things we know from biology. Bigger organisms as a rule use energy more efficiently than small ones do, yet they use more energy overall. The same goes for cities. Efficiencies of scale are never powerful enough to make bigger things use less energy.

I have yet to see an economist present a coherent argument as to how humans will somehow break free from such physical constraints. Standard economics doesn’t even discuss how energy is tied into growth, which it sees as the outcome of interactions between capital and labor.

Brian Czech further attacks the Krugman article:

Let’s not let Krugman delude us. “Growing real GDP” isn’t about an efficiency gain here and there. It means increasing production and consumption of goods and services in the aggregate. It entails a growing human population and/or per capita consumption. It means growing the whole, integrated economy: agriculture, extraction, manufacturing, services, and infrastructure. From the tailpipe of all this activity comes pollution.

Krugman seems to have fallen for the pixie dust of “dematerializing” and “green growth” in the “Information Economy.” He may want to revisit Chapter 4 of The Wealth of Nations, where Adam Smith pointed out that agricultural surplus is what frees the hands for the division of labor. In Smith’s day that included the likes of candle-making and pin manufacturing. Today it includes everything from auto-making to information processing, but the fundamentals haven’t changed. No agricultural surplus, no economic growth. And agriculture is hardly a low-energy sector.

Now, I think it’s possible to have a vision of truly clean energy, which could one day allow us to grow energy use without increasing our environmental footprint. But to get there, we have to turn the corner where the reduction in impact per unit increase in energy use is greater than the overall increase in energy use. And we are nowhere near turning that corner yet.

increase in tidal flooding events

Climate Central has this graphic predicting increases in average annual coastal flooding events in U.S. cities. It’s a little hard to read accurately, but what caught my eye is the increase from something like 20 now in my native Philadelphia to something like 75 in 2035. That is pretty big and pretty soon. I think we will manage to protect ourselves, either physically or through insurance, from changes of this magnitude that happen gradually. But it will cost money and resources that will then not be available to spend on other critical needs. So unless our income and wealth are growing faster than these impacts, we are going to be getting gradually poorer and poorer as we deal with these changes.

Source: Climate Central http://www.climatecentral.org/news/coastal-flooding-us-cities-18148

Source: Climate Central http://www.climatecentral.org/news/coastal-flooding-us-cities-18148