Sunday, February 22, 2009

Food and sustainability

I knew that the meat-rich diet was bad for the environment, but until the last few days I didn't realize that meat production emits more greenhouse gases than the international transportation industry.

I put together some details on this for a little project at work, and thought I'd post it up here as well.



Guess what – more and more research is showing that you can more to reduce your carbon footprint by going vegetarian, than by switching from an SUV to a hybrid car.

In 2006, the United Nations Food and Agricultural Organization released Livestock's Long Shadow, which identified the meat industry as a greater producer of greenhouse gases than the entire international transportation industry.

New Scientist magazine agrees, stating in 2008 that a family's food consumption accounts for double the greenhouse gases as their household driving habits.

The industrialized production of meat (approximately 15 billion animals each year in the U.S. alone) is an incredibly carbon intensive process. The problem begins with the fact that it takes 7 tons of plant protein (cows in industrial farms aren't fed grass, but soy, which can be eaten by humans) to make 1 ton of meat protein – resulting in 6 tons of wasted food (and wasted farmland, fertilizer, pesticides, oil/energy, and tremendous amounts of wasted water).
Not only does the production of meat create greenhouse gases, but by replacing forests (which act as carbon sinks to soak up C02) with farmland to grow soy for the animals, the meat industry reduces the planet's natural ability to absorb greenhouse gases. As well, cows account for approximately 40% of all the methane in the atmosphere.

In a February 2009 report, Stehfest et al state that the combined problems of methane, the C02 emissions caused by the meat industry, and the elimination of carbon sinks, are so significant that a worldwide switch to a vegetarian diet (however unlikely) would achieve the equivalent of $20 trillion spent on other climate change solutions (such as carbon sequestriation).

In Plan B 2.0: Rescuing a planet under stress and a civilization in trouble (looks like a version 3.0 was just released), Lester Brown writes that at a North American level of food consumption (ie heavy on meat), the planet can support 2.5 billion people, while at the other extreme, on the more veggie Indian diet, the earth could support 10 billion people (there are 6 billion people on the planet right now, with 9 billion expected by 2050).

Apart from greenhouse gas emissions, the industrialized meat industry creates many other environmental problems, including the toxic waste lagoons caused by pig farms (which create as much waste as cities the size of Cincinnati) and the reduction of oxygen levels in water bodies like the Gulf of Mexico, which kills all sealife in these areas.

Brown, L. (2006). Plan B 2.0: Rescuing a planet under stress and a civilization in trouble. Washington: Earth Policy Institute.

Nierenber, D. (2005). Happier meals: Rethinking the global meat industry. Danvers, MA: Worldwatch Institute.

Stehfest, E. & Bouwman, L. (2009). Climate benefits of changing diet. Climatic Change, published in Online First edition, Feb. 4, 2009.

Steinfeld, H. & Gerber, P. (2006) Livestock's long shadow: Environmental issues and options. Rome: Food and Agriculture Organization of the United Nations.

Trivedi, B. (2008). Dinner's dirty secret: your shopping basket is spewing greenhouse gases. New Scientist, 199(2673), 28-32.
PS - looks like the online version was titled What is your dinner doing to the climate?

Saturday, January 31, 2009

End of the Line

The book is sitting on my bedside table.

I can't wait to see the movie.



Pg 4
...it comes with the realization that in a single human lifetime we have inflicted a crisis on the oceans greater than any yet caused by pollution. That crisis compares with the destruction of mammoths, bison, and whales, the rape of rain forests, and the pursuit of bush meat. As a method of mass destruction, fishing with modern technology is the most destructive activity on Earth.

Pg 5
This book argues that, as a result of overfishing, we are nearing the end of the line for fish stocks and whole ecosystems in the world's oceans, and that it is time we arranged things differently.

Sunday, January 18, 2009

Dolphins evolve opposable thumbs

One of my favourite George Bush lines is included here: "I believe that human beings and fish can coexist peacefully". I assume he was asked a question about overfishing, and that was his response, but out of context it sounds like most other ridiculous George Bush comments. To give Bush credit, I mentioned over here that I'm tremendously impressed by his decision to create massive marine protected zones (i.e. oceanic equivalents of National Parks).

This is tremendously important, and ties in to a post I've been meaning to write about Pescatarians. Now, to each his own and all that, but I really think that pescatarians need to read more. I assume that pescatarians are otherwise veggie only because of the animal cruelty issue, and think that fish lack the intelligence to know suffering, and therefore the pescies (this shall be my new shortform of pescatarians) feel alright about eating fish. Now the first flaw here, if we stick with animal cruelty, is that you have to believe that hyper-intelligent dolphins, and also porpoises and whales, have the intelligence to suffer, and since deep sea nets catch and slowly kill 1000 of these creatures a day - 1000 A DAY FOR GOD'S SAKE!!! (for no purpose by the way, simple bycatch of trawlers actually going after fish) - the cans of tuna you buy at the supermarket help support the torture of dolphins. Commercial fishing by the way is a phenomenally wasteful industry - how can you support a business practice where 1/3 of the fish caught get thrown back dead into the ocean because they weren't the species that the trawler was going for?

My other response to pescatarianism is that, unless you honestly and truly cannot survive without the protein from fish (which I suspect only applies to people in the third world) you are misguidedly supporting an industry which is completely f*&%king up the planet.
As far right and conservative a magazine as the Economist has published alarm-sounding special reports (see Troubled Water) about the links between overfishing, marine diversity, climate change, and our own survival as a species.
First - we've already reached a point where all commercial fish stocks could be gone by 2048. The collapse of fish populations makes it harder for the trawlers to get their quotas, so the holes in fish nets get smaller and smaller, catching younger and younger fish - meaning fish which never get the chance to reach breeding stage, thereby eliminating the ability of fish populations to recover from overfishing. Also - the desperation ship captains feel to get their quotas leads to fish nets being dragged over and over across the floors of bays and gulfs and other shallow water areas, destroying any vegetation on the seabottom (vegetation that either feeds or protects fish).

The loss of one species of fish leads to the rise of another type, and then the downfall of another (i.e. if all the sharks die, the fish that sharks ate prosper, and they eat much more of their prey, devastating that stock). The ripple effects of this lead include things like seabirds starving, and bears in B.C. unable to eat salmon.

Meanwhile, while we all know that oceans in general are massive carbon sinks (helping suck up all of our C02 emissions), to date we didn't fully understand how oceans helped us out this way. New research shows that fish excrete a type of calcium that buffers the acidification that C02 causes in the ocean. We're already pumping so much C02 into the atmosphere, and thereby into the ocean, that the skeletons of some sea creatures are dissolving.
Lose all the fish, you lose much of the ocean's carbon sink ability, you lose your elderly aunt to a respiratory problem caused by increasing levels of C02 in the atmosphere.

P.S. - you really should watch Sharkwater and learn about shark finning, and the title of this post comes from one of my favourite articles in the Onion.

P.P.S. - this and this are random but good introductions to this topic, the first for younger audiences, and the second for adults. This one is good on coral reefs and the importance of oceans as carbon sinks.

Monday, December 22, 2008

swimming in your ocean


There's no end to the sheer idiocy of the factory farm system.
After an article back in April about how C02 intensive the meat rich diet is, Discovery News now has one about the nitrogen runoff from Factory Farms destroying oxygen levels in the Gulf of Mexico.

---------------

Now new research shows how the leftover fertilizer is contributing to an oxygen-starved dead zone where the Mississippi River drains into the Gulf of Mexico. Last summer, the zone was nearly the size of Massachusetts.

Gidon Eshel of Bard College at Simon's Rock in Massachusetts and Pamela Martin of the University of Chicago calculate that if Americans kicked their meat habit, it would prevent seven million tons of nitrogen from spilling into the gulf -- a reduction of nearly 90 percent.

"When we did the calculations, it was astonishing," Eshel said. "The main reason is we're feeding so much corn to livestock. It takes 4.5 times more cropland to do that than if you feed people a plant diet, and corn is so nitrogen-intensive."

Cutting down on nitrogen run-off is a big deal, because if it continues unchecked it could threaten shrimp and fishing industries in the gulf, said William Battaglin of the United States Geological Survey.

"Conditions have not been catastrophic to fisheries yet," he said. "The concern is that if this keeps up, you could turn the whole place into the Black Sea, with everything dead."

Saturday, December 20, 2008

Fight the power (with lentils!)

Anybody watched all of Earthlings?

EARTHLINGS is a feature length documentary about humanity's absolute dependence on animals (for pets, food, clothing, entertainment, and scientific research) but also illustrates our complete disrespect for these so-called "non-human providers." The film is narrated by Academy Award nominee Joaquin Phoenix (GLADIATOR) and features music by the critically acclaimed platinum artist Moby .



I watched the trailer and the 7 minute opening sequence, and I apologize to Joaquin, but it seems misguided to me. With the disturbing "disaster is looming" music in the background, the broad jump all the way into Peter Singer derived "speciesism" (which is a lot to confront someone with right off the bat), the references to rapists and child molesters and images of Hitler and the KKK, the focus seems to be on the perverted nature of humanity, rather than the life-affirming qualities of vegetarianism, which I think is a much more compelling way to reach people. However, everyone who commented on this You Tube video would say I'm wrong.

I prefer more playful stuff Vegetarian diet could help bail out the Big Three.

Detroit automakers - and all American manufacturers - are spending a fortune on health care because the workforce is so out of shape. Two-thirds of American adults are now overweight or obese. And as the Big Three employees get bigger, so do their health-care bills. Unfortunately, if current trends continue unchecked, almost 90 percent of American adults will be overweight or obese by 2030, according to a recent study in the journal Obesity. As a nurse practitioner specializing in the care of people with diabetes, I know that Americans' expanding waistlines bring unprecedented epidemics of diabetes and other chronic diseases.

The point being that the veggie diet, with all its various health benefits (among these, consistently well-proven diabetes prevention) would make workers much healther and cut down on all these health-care costs that employers have to pay.

Can you imagine walking up to a picket line and telling UAW workers "you can save your jobs if you go vegetarian?"

Wednesday, December 17, 2008

Veggie-ism taking some potshots


Yikes!!!
It's been a bit of a bad week in the veggie world. Despite what I - and lots of people - thought, Clint Eastwood is not actually a vegan or vegetarian. A NY Times reporter was interviewing him, and brought up the supposedly well-known "Clint as Vegan" topic - In 1986 he bought [the restaurant, which has] a piano bar, heart-stopping views of the ocean spray on Point Lobos and plenty of meat on the menu. Despite what you might have read on Wikipedia, Mr. Eastwood is not a vegan, and he looked slightly aghast when told exactly what a vegan is. “I never look at the Internet for just that reason,” he said.


And today there's a brief story about Paul McCartney and the Dalai Lama on the news websites. Turns out the Dalai Lama is NOT a vegetarian (who'd a thunk it!) and McCartney once tried, unsuccessfully, to convert him.

AND THEN, an actress named Bijou Phillips is interviewed in the LA Times and quite happily talks about veganism being crap and returning to "real" food again:
So you feel all right?
I feel good! I'm sick and I've been sick four times since I've been vegan and I hadn't been sick for five years before that. I need to eat food because this isn't working. Every vegan I know gets sick all the time.

AND FINALLY Canada's national newsmagazine, Macleans, has a lengthy story titled Will Soy Make My Son Gay. I looked into soy a while back and as far as I could see, it was fine for you. This article doesn't come down on either side of the argument, but OF COURSE they had to title it as provocatively as they do. Reminds me of this story from a while back... Rise of the Vegan Fairyboys. This writer got really hammered in the Global Vegan group on Facebook.

The only beneficial story I've seen the last few days comes (surprisingly!) from The Economist magazine's The World in 2009 special issue. In a piece called A Water Warning the President of Nestle mentions how resource intensive the meat-rich diet is compared to a veggie diet:
Diets are another variable. Europeans and Americans have for years had high proportions of meat in their diets, but now this trend is catching on in emerging markets as incomes rise. Meat requires ten times the water withdrawn per calorie by plants. So the average daily diet in California requires some 6,000 litres of water in agriculture, compared with 3,000 litres in countries such as Tunisia and Egypt.
If you've never read about the water issue before, try these:

As a Canadian, a shortage of water is the furthest thing from your mind, but this is really a massive problem.

Wednesday, November 19, 2008

PETA and the cons

I often feel that PETA shoots their mouth off too often, taking any current event story that happens and recommending that that celebrity or football team go veggie for some reason.
I mean, basically I agree, but doing it all the time becomes annoying.

So today I read this story about PETA recommending that prisons implement a veggie diet so that prisoners will be more healthy when they leave. My first thought was "Holy cow, PETA... give it a rest." But then I read through the rest of the story, and it turns out that the PETA comment was inspired by the fact that one prison in Quebec let a 450 pound drug dealer out of prison several months early simply because none of their furniture or doors etc could accommodate this guy... so he was getting early release because he was obese.

Bet the Republicans and conservatives never saw this benefit of going veggie - a vegetarian diet helps you keep your prisoners in jail and your drug dealers off the streets!