Half-Earth — the plan

Half-Earth cover E. O. WilsonWhat would it look like if we really gave half of the earth’s surface for wilderness, as Edward Wilson proposes in his book Half-Earth? What does “committing half of the planet’s surface to nature” (Half-Earth, p. 3) actually mean?

This is quite far-reaching, but it’s also ambiguous, and here is where I begin to get a bit nervous.  I presume that Wilson is talking about half of the land surface.  But which half of the planet do humans get, and which half does the non-human domain get?  If it is done strictly by area, we have to account for the fact that humans have already given themselves much of the biologically productive areas on the planet.  Translation: agricultural areas, plus many of those areas where we have built our cities and towns, typically close by to agricultural areas. Continue reading

Half-Earth — the book

Half-Earth cover E. O. WilsonHalf-Earth: Our Planet’s Fight for Life. Edward O. Wilson. Liveright Publishing Company, 2016.

Edward O. Wilson, the noted biologist, naturalist, and writer, has written a book on the extinction crisis. Species are going extinct about 1000 times as fast as the “normal” rate of extinction. The “solution,” argues the author, is dramatic and simple: “only by committing half of the planet’s surface to nature can we hope to save the immensity of life-forms that compose it” (p. 3).

Half of the Earth? Wow. That should get everyone’s attention. But there are some ambiguities with this idea. Which half of the earth goes to wilderness? How would we decide? Wilson is clear on many things, but parts of his proposal are left tantalizingly vague. Continue reading

Why is simple living so complex? (Part 3)

P1000676-small butterfly in gardenSimple living is complex, because our society has made it complex. What should we do about it?

The reason I’m so concerned about simple living, even though it’s tricky to define and almost impossible to practice, is that consumerism is destroying the planet on multiple fronts. We need simple living, on a massive scale — and especially in the advanced industrial countries — to save the ecosystems that support the existence of all animals on the planet. And no, veganism is not enough. If we keep burning coal, driving cars, and overpopulating the earth, veganism will just slow down, but not stop, the destruction. Continue reading

Why is simple living so complex? (Part 2)

Abandoned house in Detroit. Is this the future of simple living?

Abandoned house in Detroit. Is this the future of simple living?

Simple living is important given the environmental crisis. The human impact on nature is colossal and threatens all life on the planet, including eventually us, and we need to lessen that impact as much as we can. But in the United States, it is easy to consume and hard to live with less, just because of the way our society and our economy are structured. Why is this? Continue reading

Why is simple living so complex? (Part 1)

Detroit - abandoned house - Delray

An abandoned house in Detroit.

Simple living should be a simple idea, but it’s not. The basic idea of living on less is an old idea, practiced by such people as the Buddha, Jesus, Epicurus, the Quakers, Thoreau, and Gandhi. Given the environmental crises that we now face, and given huge income inequality, simple living would also seem to be a timely idea.

The problem is that our society makes increased consumption easy, under the banner of “economic growth.” Trying to consume less, rather than more, is officially discouraged; someone trying to consume less is bound to run into problems. Continue reading

Fifteen Billion Vegans?

people crowd image wikimediaSometimes I hear vegans, in the context of discussions of world hunger, say things like, “on a vegetarian or vegan diet, the world could easily support 10 or 15 billion people.” Actually, I myself have said things like this, so I’m not exactly pointing a finger here. “On a vegetarian diet, the world could undoubtedly support a population several times its present size” (A Vegetarian Sourcebook, p. 137).

Could we, really, support fifteen billion human beings on a vegan diet? Continue reading

Peak oil: it’s still a thing

Oil WellA couple of months ago the Denver Post ran an editorial, “The death knell for ‘peak oil.’” The Post editorial stated that at a 2009 conference in Denver, peak oil theorists predicted that spot shortages would “blow up prices, shock economies and destabilize governments”; but now collapsing prices and a world “awash” in oil had refuted these ideas, and “peak oil worries have been laid to rest.” (Jan. 21, 2016).

Oh, really? Let’s take a look. Continue reading

VS interview: Jesus and animal sacrifice

Jesus in the temple (Greco)

Jesus in the temple (Greco)

Yesterday was Palm Sunday, which commemorates (in the Christian calendar) Jesus’ entry into Jerusalem in the last week of his life. Sometime during this week he disrupted the animal sacrifice business in the temple, the action for which he was executed. Below I have included a second clip from the January 14 interview with the Vegan Spirituality Online Gathering. In this clip, I discuss Jesus in the temple, a rather dramatic model for animal liberation. (The “chimes” that you occasionally hear during the interview were generated when someone joined the call.) Continue reading

“The Lifestyle Carbon Dividend” — questions and answers

Last December,Climate healers logo Sailesh Rao published a study on the “Lifestyle Carbon Dividend.”  I corresponded with Sailesh about this and have posted the interchange below. I have also posted some of the relevant parts of his poster when my questions related to them. This interview may be a bit technical for some of my readers, but I learned something from this exchange myself and hope that it is helpful. Key quote: ” On average, native forests sequester more than ten times as much carbon per unit area [compared to grasslands or pasture lands].” Continue reading

“The Lifestyle Carbon Dividend” (Video)

Sailesh Rao

Sailesh Rao

In case you don’t have time to read through Sailesh Rao’s paper on “the lifestyle carbon dividend” (see previous post), you’re in luck. Sailesh has a video about his paper (about 10 minutes). This video is his introduction of the documentary “Cowspiracy” to the European Parliament. I almost missed it because I thought to myself, “I’ve already seen ‘Cowspiracy,’ so I don’t need anyone to ‘introduce’ the movie to me.” Well, it is an introduction to “Cowspiracy,” but it’s more than that. Continue reading

“The Lifestyle Carbon Dividend”

Sailesh Rao photoLast December, Sailesh Rao and two of his colleagues made a presentation to the American Geophysical Union, entitled “The Lifestyle Carbon Dividend.” The key point of this paper was that by simply stopping livestock agriculture, we could sequester a lot of carbon and thereby decrease the carbon dioxide levels of the atmosphere. The reason is that grazing land occupies much of the planet’s surface today. In the absence of livestock agriculture, much of this area would revert to forests, which incorporate much, much more carbon than grasslands or pasture. How much carbon could we sequester in these new forests? More carbon than has been released into the atmosphere since 1800. Continue reading

VS interview: Jesus’ family and vegetarianism

Jesus and Nicodemus (H. O. Tanner)

Jesus and Nicodemus (H. O. Tanner)

On Thursday, January 14, the Vegan Spirituality Online Gathering (a project of In Defense of Animals) interviewed me. They recorded the whole call and have made it available on YouTube. Besides me, Lisa Levinson and Judy Carman were also on the call. It’s rather long — over an hour and twenty-two minutes — so I’m just including a short clip in which I discuss Jesus’ family and vegetarianism, including James, the brother of Jesus and the first leader of the church after Jesus. I’ll add a second clip later. Continue reading

Why I’m Not Caught Up in Super Bowl Mania

By Kate Lawrence
(reblogged from A Practical Peacemaker Ponders)

super-bowl-stadiumLiving in Denver, with the Broncos going to the Super Bowl this year, I see lots of people dressed in the Broncos’ team colors, pages and pages of news coverage of the teams and their prospects, many parties being planned, and for a wealthy few, the anticipation of attending the game itself. At the risk of being asked what planet I come from, or being considered “un-American” because I am not going to watch the game (a fitness instructor in a class I attend actually said this), I’d like to explore some concerns behind the hoopla. When we look more closely at the Super Bowl, we see a waste of environmental resources, large amounts of consumers’ money spent on throwaway items, and a glorification of violence–all as part of an event priced so high that people of average income cannot even attend. Continue reading

A quick “limits to growth” bibliography



At my talk on Saturday night, several people indicated an interest in a bibliography for people who want to read more about “limits to growth” issues. I recognize the need for more information on this subject, but on the other hand, I feel a bit ambivalent about throwing inquiring minds into what is possibly a literary and scientific briar patch. If I try to “improve” the bibliography and explain what each book contains that is of value, the project could spin out of control, and instead of a blog post I might wind up writing another book. Continue reading

Talk on “Veganism and the Environment”

Keith AkersIf you’re in Denver this Saturday, January 30, I’m giving a talk on “veganism and the environment” at the Denver Vegans monthly potluck. It will be at the Rocky Mountain Miracle Center, 1939 South Monroe Street in Denver (near the intersection of Colorado Blvd. and I-25). Gather at 6:00 pm, potluck at 6:30 pm, and my talk will begin about 7:00. $2 requested to cover the rental of the space. Bring a vegan dish for the potluck or just show up for the talk. For more details, check out the Denver Vegans site.

My approach is substantially different both from that of both other vegans and other environmentalists. We are facing the limits to economic growth and the basic unsustainability of our civilization and way of life. There will be an overview of  livestock-related environmental issues such as climate change, resource depletion, and mass extinctions; and I’ll go further into the issues that the movie,“Cowspiracy,” raised. There will be time for questions and answers and a discussion.