Tag Archives: natural capital

global human footprint mapping

This article in Nature Communications is about detailed global mapping of human impacts on the Earth’s ecosystems.

Sixteen years of change in the global terrestrial human footprint and implications for biodiversity conservation

Human pressures on the environment are changing spatially and temporally, with profound implications for the planet’s biodiversity and human economies. Here we use recently available data on infrastructure, land cover and human access into natural areas to construct a globally standardized measure of the cumulative human footprint on the terrestrial environment at 1 km2 resolution from 1993 to 2009. We note that while the human population has increased by 23% and the world economy has grown 153%, the human footprint has increased by just 9%. Still, 75% the planet’s land surface is experiencing measurable human pressures. Moreover, pressures are perversely intense, widespread and rapidly intensifying in places with high biodiversity. Encouragingly, we discover decreases in environmental pressures in the wealthiest countries and those with strong control of corruption. Clearly the human footprint on Earth is changing, yet there are still opportunities for conservation gains.

August 2016 in Review

3 most frightening stories

3 most hopeful stories

3 most interesting stories

  • Bokashi is a system that essentially pickles your compost.
  • There is an unlikely but plausible scenario where Gary Johnson, the Libertarian candidate, could become President of the United States this fall. Speaking of implausible scenarios, I learned that RIchard Nixon made a serious attempt to pass a basic income bill in 1969.
  • Here is a short video explaining the Fermi Paradox, which asks why there are no aliens. Meanwhile Russian astronomers are saying there might be aliens.

Shrinking the Earth: The Rise and Decline of American Abundance

Here is the Amazon description of a new(ish) book by Donald Worster called Shrinking the Earth: The Rise and Decline of American Abundance.

The discovery of the Americas around 1500 AD was an extraordinary watershed in human experience. It gave rise to the modern period of human ecology, a phenomenon global in scope that set in motion profound changes in almost every society on earth. This new period, which saw the depletion of the lands of the New World, proved tragic for some, triumphant for others, and powerfully affecting for all.

In this work, acclaimed environmental historian Donald Worster takes a global view in his examination of the ways in which complex issues of worldwide abundance and scarcity have shaped American society and behavior over three centuries. Looking at the limits nature imposes on human ambitions, he questions whether America today is in the midst of a shift from a culture of abundance to a culture of limits-and whether American consumption has become reliant on the global South. Worster engages with key political, economic, and environmental thinkers while presenting his own interpretation of the role of capitalism and government in issues of wealth, abundance, and scarcity. Acknowledging the earth’s agency throughout human history, Shrinking the Earth offers a compelling explanation of how we have arrived where we are and a hopeful way forward on a planet that is no longer as large as it once was.

It’s interesting to think that humanity took a few thousand years to “deplete” Europe and Asia, and now we have depleted North and South America in just a few hundred years. If there were another sizable continent out there, we could probably deplete it in a few decades, and the one after that in a few years, then months, etc.

But there aren’t any more out there, unless and until we are talking about going into space. This reminds me of a couple plausible near-future science fiction series on exactly this theme: Red Mars by Kim Stanley Robinson and Coyote by Allen Steele. Both worth reading, although I found the latter a bit more entertaining.

Earth Overshoot Day

Today (I’m writing on August 8) has been named Earth Overshoot Day 2016.

Earth Overshoot Day marks the point where we have pulled more resources, like fish, fuel and water, out of the planet than can be replenished. It’s also the point where we have put more pollution into the air and water than Earth can successfully deal with. Humans have been doing that for a long time, but ever since 1971, Overshoot Day has crept disconcertingly earlier and earlier. This year, Overshoot Day is a full 5 days earlier than last year. That’s the earliest it has ever been.

This is another way of attempting to communicate the ecological footprint concept. It would take 1.5 Earths to produce the amount of ecosystem services we deplete in one year, so that means we have depleted them two thirds of the way through the year, or month 8 of 12. The footprint is growing every year, which doesn’t just mean things are getting worse, it means they are getting worse at a faster rate. We don’t know how much worse they can get before our civilization enters decline, or whether the decline would be a sudden catastrophic one or a long slow one (which could have already begun without our realizing it.) But we know logically that there is such a point of no return. Reducing our footprint would be good, but it would just mean things were getting worse at a slower rate. To actually reverse our path toward the tipping point, we would have to reduce our footprint all the way to 1 Earth or push Earth Overshoot Day all the way back to December 31.

Venezuela

Before I even talk about this Atlantic article on Venezuela, let me say that I don’t know enough about Venezuela to have much of an opinion on it or its politics. And the language in the article is not unbiased, but has an ideological bent. But here’s what it says:

What our country is going through is monstrously unique: It’s nothing less than the collapse of a large, wealthy, seemingly modern, seemingly democratic nation just a few hours’ flight from the United States.

In the last two years Venezuela has experienced the kind of implosion that hardly ever occurs in a middle-income country like it outside of war. Mortality rates are skyrocketing; one public service after another is collapsing; triple-digit inflation has left more than 70 percent of the population in poverty; an unmanageable crime wave keeps people locked indoors at night; shoppers have to stand in line for hours to buy food; babies die in large numbers for lack of simple, inexpensive medicines and equipment in hospitals, as do the elderly and those suffering from chronic illnesses.

Like I said this article is ideological, blaming the problems on “Chavez’s 21st-century socialism”:

A case in point is the price controls, which have expanded to apply to more and more goods: food and vital medicines, yes, but also car batteries, essential medical services, deodorant, diapers, and, of course, toilet paper. The ostensible goal was to check inflation and keep goods affordable for the poor, but anyone with a basic grasp of economics could have foreseen the consequences: When prices are set below production costs, sellers can’t afford to keep the shelves stocked. Official prices are low, but it’s a mirage: The products have disappeared.

When a state is in the process of collapse, dimensions of decay feed back on each other in an intractable cycle. Populist giveaways, for example, have fed the country’s ruinous flirtation with hyperinflation; the International Monetary Fund now projects that prices will rise by 720 percent this year and 2,200 percent in 2017. The government virtually gives away gasoline for free, even after having raised the price earlier this year. As a result of this and similar policies, the state is chronically short of funds, forced to print ever more money to finance its spending. Consumers, flush with cash and chasing a dwindling supply of goods, are caught in an inflationary spiral.

The Soviet Union taught us that there is such a thing as going too far with price controls, and such a thing as being overly reliant on oil revenues. Maybe leaders of this country missed some of those lessons of history and repeated some of those mistakes. But I also see another lesson here. The article talks about both the collapse in oil prices, which hit government revenues hard, and the severe drought caused by El Nino, which is causing both water shortages and electricity shortages because the country is dependent on hydropower. So whatever the decisions of political leaders, which I take no position on here, the country was clearly not ready for an external shock caused by environmental factors and changes in supply and demand of natural resources. It may be a microcosm for things to come on a larger scale elsewhere in the world.

Carbon Nanotubes Produced from Ambient Carbon Dioxide

Producing carbon nanofibers from ambient carbon dioxide seems like a potential breakthrough. You are removing the greenhouse gas from the air, and producing an incredibly useful product that can be used for everything from batteries to store renewable energy (discussed in this article) to (I am speculating) strong, light-weight carbon-negative materials that could replace a portion of the heavy-footprint steel and concrete we use today.

Carbon Nanotubes Produced from Ambient Carbon Dioxide for Environmentally Sustainable Lithium-Ion and Sodium-Ion Battery Anodes

The cost and practicality of greenhouse gas removal processes, which are critical for environmental sustainability, pivot on high-value secondary applications derived from carbon capture and conversion techniques. Using the solar thermal electrochemical process (STEP), ambient CO2 captured in molten lithiated carbonates leads to the production of carbon nanofibers (CNFs) and carbon nanotubes (CNTs) at high yield through electrolysis using inexpensive steel electrodes. These low-cost CO2-derived CNTs and CNFs are demonstrated as high performance energy storage materials in both lithium-ion and sodium-ion batteries. Owing to synthetic control of sp3 content in the synthesized nanostructures, optimized storage capacities are measured over 370 mAh g–1 (lithium) and 130 mAh g–1 (sodium) with no capacity fade under durability tests up to 200 and 600 cycles, respectively. This work demonstrates that ambient CO2, considered as an environmental pollutant, can be attributed economic value in grid-scale and portable energy storage systems with STEP scale-up practicality in the context of combined cycle natural gas electric power generation.

Combined with renewable energy sources, maybe this is the breakthrough technology that gets us over the current hump where we are pushing against the ecological limits, and sets us on a path of continuing growth with a lower footprint until we eventually push against the limits again. Or, put the right incentives and policies in place to control the unsustainable portion of the growth, and with this technology in place maybe we can make it all the way until the asteroid hits. And by then, we can try to have people spread across a few planets. And then we are good until the sun burns out, or the aliens come for us, or the universe collapses. None of which will be my problem.

January 2016 in Review

I’m going to try picking the three most frightening posts, three most hopeful posts, and three most interesting posts (that are not particularly frightening or hopeful) from January.

3 most frightening posts

  • Paul Ehrlich is still worried about population. 82% of scientists agree.
  • Thomas Picketty (paraphrased by J. Bradford Delong) says inequality and slow growth are the norm for a capitalist society. Joseph Stiglitz has some politically difficult solutions: “Far-reaching redistribution of income would help, as would deep reform of our financial system – not just to prevent it from imposing harm on the rest of us, but also to get banks and other financial institutions to do what they are supposed to do: match long-term savings to long-term investment needs.”
  • Meanwhile, government for and by big business means the “Deep State” is really in control of the U.S. In our big cities, the enormous and enormously dysfunctional police-court-prison system holds sway over the poor.

3 most hopeful posts

3 most interesting posts

  • There are some arguments in favor of genetically modified food – they have increased yields of some grains, and there is promise they could increase fish yields. 88% of scientists responding to a Pew survey said they think genetically modified food is safe, but only 37% of the U.S. public thinks so. In other biotech news, Obama’s State of the Union announced a new initiative to try to cure cancer. In other food news, red meat is out.
  • Not only is cash becoming obsolete, any physical form of payment at all may become obsolete.
  • The World Economic Forum focused on technology: “The possibilities of billions of people connected by mobile devices, with unprecedented processing power, storage capacity, and access to knowledge, are unlimited. And these possibilities will be multiplied by emerging technology breakthroughs in fields such as artificial intelligence, robotics, the Internet of Things, autonomous vehicles, 3-D printing, nanotechnology, biotechnology, materials science, energy storage, and quantum computing.”

 

2015 Year in Review

I’m going to try picking the most frightening, most hopeful, and most interesting post from each month. If the most interesting is also the most frightening or most hopeful, I’ll pick the next most interesting. Then I’ll have 12 nominees in each category and I’ll try to pick the most frightening, hopeful, and interesting posts of the year.

JANUARY

Most frightening: Johan Rockstrom and company have updated their 2009 planetary boundaries work. The news is not getting any better. 4 of the 9 boundaries are not in the “safe operating space”: climate change, loss of biosphere integrity, land-system change, altered biogeochemical cycles (phosphorus and nitrogen).

Most hopeful: It is starting to seem politically possible for the U.S. to strengthen regulation of risk-taking by huge financial firms.

Most interesting: Taxi medallions have been called the “best investment in America”, but now ride-sharing services may destroy them.

FEBRUARY

Most frightening: There are some depressing new books out there about all the bad things that could happen to the world, from nuclear terrorism to pandemics. Also a “financial black hole”, a “major breakdown of the Internet”, “the underpopulation bomb”, the “death of death”, and more!

Most hopeful: A new study suggests a sudden, catastrophic climate tipping point may not be too likely.

Most interesting: Government fragmentation explains at least part of suburban sprawl and urban decline in U.S. states, with Pennsylvania among the worst.

MARCH

Most frightening: The drought in California and the U.S. Southwest is the worst ever, including one that wiped out an earlier civilization in the same spot. At least it is being taken seriously and some policies are being put in place. Meanwhile Sao Paulo, Brazil is emerging as a cautionary tale of what happens when the political and professional leadership in a major urban area fail to take drought seriously. Some people are predicting that water shortages could spark serious social unrest in developing countries.

Most hopeful: If we want to design ecosystems or just do some wildlife-friendly gardening, there is plenty of information on plants, butterflies, and pollinators out there. There is also an emerging literature on spatial habitat fragmentation and how it can be purposely designed and controlled for maximum benefit.

Most interesting (I just couldn’t choose between these):

  • Innovation in synthetic drugs is quickly outpacing the ability of regulatory agencies to adapt. (I struggled whether to put this in the negative or positive column. Drugs certainly cause suffering and social problems. But that is true of legal tobacco and alcohol, and prescription drugs, as well as illegal drugs. The policy frameworks countries have used to deal with illegal drugs in the past half century or so, most conspicuously the U.S. “war” on drugs, have led to more harm than good, and it is a good thing that governments are starting to acknowledge this and consider new policies for the changing times.)
  • Germ-line engineering is much further along than anyone imagined.” This means basically editing the DNA of egg and sperm cells at will. I put this in the positive column because it can mean huge health advances. Obviously there are risks and ethical concerns too.

APRIL

Most frightening: A group of well-known economists is concerned that the entire world has entered a period of persistently low economic growth, or “secular stagnation“.

Most hopeful: Donald Shoup, author of The High Cost of Free Parking, is retiring. That might sound bad, but his ground-breaking ideas are continuing on and actually seem to be going mainstream.

Most interesting:

  • Biotechnology may soon bring us the tools to seriously monkey with photosynthesis. (This is one of those stories where I struggle between the positive and negative columns, but clearly there is a potential upside when we will have so many mouths to feed.)
  • Peter Thiel thinks we can live forever. (positive, but do see my earlier comment about mouths to feed…)

MAY

Most frightening: We’ve hit 400 ppm carbon dioxide in the atmosphere, not just some places sometimes but pretty much everywhere, all the time.

Most hopeful: The rhetoric on renewable energy is really changing as it starts to seriously challenge fossil fuels on economic grounds. Following the Fukushima disaster, when all Japan’s nuclear reactors were shut down, the gap was made up largely with liquid natural gas and with almost no disruption of consumer service. But renewables also grew explosively. Some are suggesting Saudi Arabia is supporting lower oil prices in part to stay competitive with renewables. Wind and solar capacity are growing quickly in many parts of the world.Lester Brown says the tide has turned and renewables are now unstoppable.

Most interesting: Human chemical use to combat diseases, bugs, and weeds is causing the diseases, bugs and weeds to evolve fast.

JUNE

Most frightening: One estimate says that climate change may reduce global economic growth by 3% in 2050 and 7-8% by 2100. Climate change may also double the frequency of El Nino. The DICE model is available to look at climate-economy linkages. Dennis Meadows and Jorgen Randers describe what a coming long, slow decline might look like. Rising temperatures in the Arctic are drying things out, leading to more fires, which burns more carbon, which raises temperatures, in an accelerating feedback loop.

Most hopeful: Stock values of U.S. coal companies have collapsed.

Most interesting: According to Paul Romer, academic economics has lost its way and is bogged down in “mathiness”.

JULY

Most frightening: James Hansen is warning of much faster and greater sea level rise than current mainstream expectations.

Most hopeful: Edible Forest Gardens is a great two book set that lays out an agenda for productive and low-input ecological garden design in eastern North America. You can turn your lawn into a food forest today.

Most interesting:

AUGUST

Most frightening: Steven Hawking is worried about an artificial intelligence arms race starting “within years, not decades”.

Most hopeful: It may be possible to capture atmospheric carbon and turn it into high-strength, valuable carbon fiber. This sounds like a potential game-changer to me, because if carbon fiber were cheap it could be substituted for a lot of heavy, toxic and energy-intensive materials we use now, and open up possibilities for entirely new types of structures and vehicles.

Most interesting:

  • gene drive” technology helps make sure that genetically engineered traits are passed along to offspring.
  • Technology marches on – quantum computing is in early emergence, the “internet of things” is arriving at the “peak of inflated expectations”, big data is crashing into the “trough of disillusionment”, virtual reality is beginning its assent to the “plateau of productivity”, and speech recognition is arriving on the plateau. And super-intelligent rodents may be on the way.
  • Robotics may be on the verge of a Cambrian explosion, which will almost certainly be bad for some types of jobs, but will also bring us things like cars that avoid pedestrians and computer chips powered by sweat. I for one am excited to be alive at this moment in history.

SEPTEMBER

Most frightening: Climate may be playing a role in the current refugee crisis, and the future may hold much more of this.

Most hopeful: The right mix of variety and repetition might be the key to learning.

Most interesting: Edward Tufte does not like Infographics.

OCTOBER

Most frightening: Corrupt Russian officials appear to be selling nuclear materials in Moldova.

Most hopeful: Elephants seem to have very low rates of cancer. Maybe we could learn their secrets.

Most interesting: Stephen Hawking is worried about inequality and technological unemployment.

NOVEMBER

Most frightening: I noticed that Robert Costanza in 2014 issued an update to his seminal 1997 paper on ecosystem services. He now estimates their value at $125 trillion per year, compared to a world economy of $77 trillion per year. Each year we are using up about $4-20 trillion in value more than the Earth is able to replenish. The correct conclusion here is that we can’t live without ecosystem services any time soon with our current level of knowledge and wealth, and yet we are depleting the natural capital that produces them. We were all lucky enough to inherit an enormous trust fund of natural capital at birth, and we are spending it down like the spoiled trust fund babies we are. We are living it up, and we measure our wealth based on that lifestyle, but we don’t have a bank statement so we don’t actually know when that nest egg is going to run out.

Most hopeful: There are plenty of ways to store intermittent solar and wind power so they can provide a constant, reliable electricity source.

Most interesting: Asimov’s yeast vats are finally here. This is good because it allows us to produce food without photosynthesis, but bad because it allows us to produce food without photosynthesis.

DECEMBER

Most frightening: Cyberattacks or superflares could destroy the U.S. electric grid.

Most hopeful: We had the Paris agreement. It is possible to be cynical about this agreement but it is the best agreement we have had so far.

Most interesting: I mused about whether it is really possible the U.S. could go down a fascist path. I reviewed Robert Paxton’s five stages of fascism. I am a little worried, but some knowledgeable people say not to worry. After reading Alice Goffman’s book On the Runthough, one could conclude that a certain segment of our population is living in a fascist police state right now. There is some fairly strong evidence that financial crises have tended to favor the rise of the right wing in Europe.

DISCUSSION

Well, one thing that certainly jumps out on the technology front is biotechnology. We have a couple articles about the possibility of drastic increases in the human lifespan, and what that would mean. “Germ-line engineering”, “gene drive”, and “CRISPR” are all ways of monkeying with DNA directly, even in ways that get passed along to offspring. To produce more food, we may be able to monkey with the fundamentals of photosynthesis, and if that doesn’t work we can use genetically engineered yeast to bypass photosythesis entirely.

At the risk of copyright infringement, I am reproducing the “Gartner hype cycle” below, which was mentioned in one of the posts from August.

Gartner Hype Cycle

Gartner Hype Cycle

Government and corporate labs have been making huge advances in biotechnology in the last decade or so, so it is well beyond the “innovation trigger”. It has not yet reached the “peak of inflated expectations” where it would explode onto the commercial and media scene with a lot of fanfare. I expect that will happen. We will probably see a biotech boom, a biotech bubble, and a biotech bust similar to what we saw with the computers and the internet. And then it will quietly pervade every aspect of our daily lives similar to computers and the internet, and our children will shrug and assume it has always been that way.

Obviously there are dangers. A generation of people that refuse to die on time would be one. Bioterrorism is obviously one. Then there is the more subtle matter that as we raise the limit on the size our population and consumption level can attain, the footprint of our civilization will just grow to meet the new limit. When and how we come up against these limits, and what to do about it, is the subject of the updates to two seminal papers on these issues, by Rockstrom and Costanza. We have entered an “unsafe operating space” (Rockstrom), where we are depleting much more natural capital each year than the planet can replenish (Costanza), and there will be consequences. The Paris agreement is one hopeful sign that our civilization might be able to deal with these problems, but even if we deal with the carbon emission problem, it might be too late to prevent the worst consequences, and there are going to be “layers of limits” as the authors of Limits to Growth put it all those decades ago. If we take care of the global warming problem and figure out a way to grow food for 50 billion people, eventually we will grow to 50 billion people and have to think of something else.

So without further ado:

Most frightening: I can’t pick just one. In the relatively near term, it’s the stalling out of the world economy; the convergence of climate change, drought, and the challenge of feeding so many people; and the ongoing risks from nuclear and biological weapons.

Most hopeful: I see some hope on energy and land use issues. The Paris agreement, combined with renewable energy and energy storage breakthroughs, the potential for much more efficient use of space in cities rather than letting cars take up most of the space, are all hopeful. The possibility of making carbon fiber out of carbon emissions is a particularly intriguing one. At my personal scale, I am excited to do some sustainable gardening of native species that can feed both people and wildlife. I don’t expect my tiny garden to make a major difference in the world, but if we all had sustainable gardens, they were all connected, and we weren’t wasting so much space on roads and parking, it could start adding up to a much more sustainable land use pattern.

Most interesting: I’ve already mentioned a lot of stuff, so I will just pick something I haven’t already mentioned in the discussion above: the rise of synthetic drugs. It’s just an interesting article and makes you think about what it will mean to have advanced chemical, information, and biological technologies in the hands of the little guy, actually many, many little guys. It is a brave, new, dangerous, exciting world indeed. Happy new year!

ecological civilization, and the bees from The X Files

We’re entering that time of year for look-backs and trend forecasts. Trends in Ecology and Evolution journal has A Horizon Scan of Global Conservation Issues for 2016:

This paper presents the results of our seventh annual horizon scan, in which we aimed to identify issues that could have substantial effects on global biological diversity in the future, but are not currently widely well known or understood within the conservation community. Fifteen issues were identified by a team that included researchers, practitioners, professional horizon scanners, and journalists. The topics include use of managed bees as transporters of biological control agents, artificial superintelligence, electric pulse trawling, testosterone in the aquatic environment, building artificial oceanic islands, and the incorporation of ecological civilization principles into government policies in China.

I vaguely remember that The X Files was obsessed with bees as delivery devices for smallpox, or aliens, or alien smallpox…

I hadn’t heard the phrase “ecological civilization” before. When I Google it I am finding references to statements by the Chinese government and quotes from Marx and Engels (who had a lot to say about depletion of natural resources by short-sighted profit seeking entities, although they might have objected to the term “natural capital”). Here is an article from The Diplomat, a respected international news magazine based in Tokyo:

The “ecological civilization” concept first appeared in 2007, in a report to the 17th National People’s Congress. At the Third Plenary Session of the 18th Central Committee in 2013, Xi stressed that China would implement “ecological civilization reforms” – reforms to reconcile contradictions between economic development and the environment. In April this year, the plan was restated, with the release of a document outlining the acceleration of moves to establish an ecological civilization.

Proposals include performing natural resources audits when local officials leave their posts, so as to force officials pay attention to environmental protection while in office, or be held to account when they leave. A pilot scheme will be carried out in five different locations, including Hulunbuir in Inner Mongolia. It is the first time such a trial has been proposed by the central government. It will take place in three stages: a launch this year, expansion next year, then in 2017 full audits in the trial locations, with regular audits starting from 2018. The aim is to get local officials to give greater priority to the environment, compared to the economy…

Sun Xinghua, deputy chair of the China Environmental Sciences Association’s auditing committee, told chinadialogue that “confirmation of property rights for natural resources has never been raised before.” Currently, ownership of natural resources in China is unclear. Clarification of rights and responsibilities will reduce disputes and allow for valuation of natural resources. And valuation will allow the compilation of tables of ‘natural resource debts’, removing a major obstacle to auditing of natural resources when local officials leave their posts.

That’s a pretty interesting idea – calculating a politician’s “debt to nature” based on policies they have chosen. You could even do that for, say, an entire legislature and display that number next to economic output statistics for their time in office.

November 2015 in Review

What did I learn in November? Let’s start with the bad and then go to the good.

Negative stories (-10):

  • The World Economic Forum’s 2015 Global Risks Report came out. Some of the top risks are interstate conflict, water crisis, failure of climate change adaptation, unemployment and underemployment. Hmm, that “interstate conflict” items might be what we used to call “war”. And I think there might be one underway right now in the Middle East, which Jimmy Carter says we are getting all wrong. And it just might be caused by the other items on the list. And speaking of war, there is a new book on the Vietnam War aimed at the middle grades, but it seems pretty harsh for that age to me. (-2)
  • I noticed that Robert Costanza in 2014 issued an update to his seminal 1997 paper on ecosystem services. He now estimates their value at $125 trillion per year, compared to a world economy of $77 trillion per year. Each year we are using up about $4-20 trillion in value more than the Earth is able to replenish. The correct conclusion here is that we can’t live without ecosystem services any time soon with our current level of knowledge and wealth, and yet we are depleting the natural capital that produces them. We were all lucky enough to inherit an enormous trust fund of natural capital at birth, and we are spending it down like the spoiled trust fund babies we are. We are living it up, and we measure our wealth based on that lifestyle, but we don’t have a bank statement so we don’t actually know when that nest egg is going to run out. (-3)
  • This crop of presidential candidates is easy for comedians to make fun of. I enjoy it but think it may be a contrary indicator for the health of the country. (-1)
  • Bicycle helmets are not making U.S. bicycle riders any safer. This is why we need streets designed on the European model to be safe for driving, bicycling, and walking. It’s 100% known technology and there can be no excuses! (-2)
  • In current events, we had the awful, shocking terrorist attacks in Paris. I suggested that the long-term answer to violence caused by angry young men anywhere is to understand why they are angry, address their legitimate grievances, and give them productive work to do. Short term, we also have to detect and disrupt any plots involving nuclear or biological weapons, of course, because we can’t afford even one. (-2)

Positive stories (+9):