by Marion Nestle

Currently browsing posts about: Climate change

Jun 3 2014

Dietary Guidelines Committee under attack for caring about how food is produced

I received an e-mail from the communications director of the Independent Women’s Forum, a group whose mission is to “improve the lives of Americans by increasing the number of women who value free markets and personal liberty.”

Interesting.

The group and its friends have just sent a letter to USDA and HHS complaining that the 2015 Dietary Guidelines Advisory Committee (DGAC) is exceeding its mandate.

Among our most acute concerns is the “mission creep” of the Committee, which has expanded to include non-dietary factors such as “carbon footprints,” “climate change,” “urban agriculture,” and “green cleaning and pest control practices.”

This likely reflects the composition of the Committee, which is nearly all epidemiologists from elite academic institutions with no direct experience in the practical realities of how food is produced and what average Americans may choose to eat.

We need only consider the strongly negative reaction to recent changes to the school lunch rules to understand what is at risk if this Committee attempts to dictate over-reaching changes to the American diet.

This would be funny if it weren’t part of the Republican agenda to roll back improvements in nutrition advice and practice aimed at preventing obesity and its related chronic diseases.

What the IWF is saying is that its members know better about what’s good for health than all those elite epidemiologists, scientists, and other experts on the committee who are worried about what climate change will do to our food supply.

Let’s hope the agencies ignore this letter.

Feb 3 2012

The U.K. food industry fights labeling efforts, successfully

Tim Lang, professor of food policy at City University, London, writes that the U.K. food industry is fighting back over initiatives to reduce calories and mitigate climate change.

He sends an article from the British trade publication, The Grocerabout how the U.K. government has reneged on its “responsibility deal” with industry to reduce calories in food products. 

The idea was to demand that food companies reformulate products, control portion size, and take “action to shift to lower calorie options.”

But now, in response to industry protests,  the U.K. Department of Health is simply inviting food companies to help in the development of calorie-reduction policies.

To this invitation to the fox to guard the chickens, professor Lang comments:

Those of us following the currently fashionable ‘nudge’ theory and other ‘Food Policy lite’ initiatives will note this leak about softening the Responsibility Deal on calorie reduction here in England with concern…Perish the thought that sections of the Food Industry might have lobbied hard to stop any efforts to reduce portion size. Perish, indeed.

Another article in The Grocer points out that Tesco, Britain’s leading food retailer, is pulling out of an agreement to put carbon labels on products becausedoing so is too much trouble.

Professor Lang writes:

Here is the world’s 3rd largest food retailer, Tesco, apparently saying that the carbon label (a weak system for changing behaviour in the first place, perhaps) takes too much time. Well, well, well.

If this is true…the implications are considerable, not least for the planet, given that a third of European (i.e., rich consumers) greenhouse gas emissions are due to food.

He gives as sources for that statement:

  • Tukker, A., et al., Environmental Impacts of Diet Changes in the EU. 2009, European Commission Joint Research Centre Institute for Prospective Technological Studies: Seville.
  • Tukker, A., et al., Environmental Impact of Products (EIPRO): Analysis of the life cycle environmental impacts related to the final consumption of the EU-25. EUR 22284 EN. 2006, European Commission Joint Research Centre.: Brussels.
  • Audsley, E., et al., How Low Can We Go? An assessment of greenhouse gas emissions from the UK food system and the scope for reduction by 2050 2010, FCRN and WWF: Godalming, Surrey.

So much for voluntary actions by industry.  Regulation anyone?

 This just in: The European Commission issued a statement of regret that the European Parliament vetoed its proposal to allow “percent less” health claims on food packages yesterday.  These are statements that a product contains 15% less sugar, for example.

The Commission thinks such claims will encourage reformulation of food products.  The Parliament believes that such claims are misleading and will promote sales of junk foods. 

Which is right? Who knows?

Dec 19 2011

Today’s oxymoron: a greener soda bottle

On the plastic bottle front, much is happening.

BPA plastics are banned from the European market, only to be replaced by other plastics that seem to have their own problems.  These are detailed in three articles in Food Additives and Contaminants dealing with the migration of chemicals from baby bottles.

  • Santillana et al.,  Migration of bisphenol A from polycarbonate baby bottles purchased in the Spanish market by liquid chromatography and fluorescence detection (2011); doi: 10.1080/19440049.2011.589036.
  • Simoneau, et al., Comparison of migration from polyethersulphone and polycarbonate baby bottles (2011) doi:10.1080/19440049.2011.604644.
  • Simoneau, et al.,  Identification and quantification of migration of chemicals from plastics baby bottles used as substitutes for polycarbonate, ( 2011); doi 10.1080/19440049.2011.644588.

In response to such concerns, soft drink companies are engaging in the latest form of “cola wars,” this time the race to greener bottles.  As the New York Times puts it,

Over their decades of competition, the battle between Coca-Cola and PepsiCo has taken on many colors — brown (cola), orange (juice), blue (sport drinks) and clear (water).

Now, they are fighting over green: The beverage rivals are racing to become the first to produce a plastic soda bottle made entirely from plants.

Coca-Cola has signed up with three biotechnology companies to produce materials for 100% plant-based bottles.  It already has some recyclable PlantBottles, but these are only 30% plant-based (mono-ethylene glycol, MEG).  The other 70% is purified terephthalic acid, PTA.  Coke says it will go to 100% plant-based by 2020.

PepsiCo says it is doing the same thing, only faster.

OK, plant-based.  But from what?

Coke says it is experimenting with Brazilian sugarcane, molasses, and other plant residue materials but might also use crops grown specifically for plastic production.  Pepsi says it will use agricultural waste products, such as corn husks, pine bark or orange peels.

What about corn?  Corn has already been used to produce plastics, but doing this is just like growing food crops for biofuels, causing land conversion, higher food prices, and heavy fertilizer use.

It will be good to get the harmful chemicals out of drink bottles.

But soft drinks are inherently wasteful of natural resources.  All the greenwashing in the world can’t hide that.

Oct 15 2011

Chocolate lovers: climate change affects you!

Every now and then something brings home what climate change could do to us: no chocolate!

Researchers in Colombia predict that the 1 degree rise in world temperatures expected by 2030 will hit small cocoa farmers in West Africa. particularly hard.  Farmers in Ghana and Cote d-Ivoire produce half the world’s cocoa.

The 2 degree rise expected by 2050 will make it impossible for them to grow the plants at current elevations.

Now that’s something to worry about over the weekend, no?

Nov 12 2010

“Climate-smart” agriculture: FAO report

The role of agriculture in causing and becoming affected by climate change is, to say the least, of much current interest.  The Food and Agriculture Organization of the U.N. (FAO) has  a new report out on precisely this issue: “Climate-Smart” Agriculture: Policies, Practices and Financing for Food Security, Adaptation, and Mitigation.

The report focuses on agriculture in developing countries.  These must develop “climate-smart” approaches to cope with the challenge of feeding a warmer, more heavily populated world.

Climate change is expected to reduce agriculture productivity, stability and incomes in many areas that already experience high levels of food insecurity — yet world agriculture production will need to increase by 70 percent over the coming four decades in order to meet the food requirements of growing world population.

What needs to change?

  • Agriculture: must produce more food, waste less, and make it easier for farmers to get their produce to consumers.
  • Farming: must do a better job of managing natural resources like water, land and forests, soil nutrients and genetic resources to be more resilient to natural disasters.
  • Insurers: must do a better job of helping farmers cope with climate-related problems.
  • Agriculture: must find ways to reduce its environmental impacts — including lowering its own greenhouse gas emissions — without compromising food security and rural development.

This will take money, but from where?

The report gives examples of how farmers are already moving to tackle these issues and adopt new, climate-smart practices.

But how odd: how come FAO isn’t talking about agricultural practices in developed countries ?  Don’t we have some responsibility here?

Dec 22 2009

Eating Liberally: Are pets responsible for climate change?

It’s been quite a while since Eating Liberally’s kat had a question for me, but this one certainly got my attention.  My book about pet food with Malden Nesheim, Feed Your Pet Right, has just progressed past its second set of page-proof corrections and is slowly making its way to publication on May 11.  Here’s her question:

Let’s Ask Marion: Is Fido The New Hummer?

Submitted by KAT on Tue, 12/22/2009 – 8:13am.

(With a click of her mouse, EatingLiberally’s kat corners Dr. Marion Nestle, NYU professor of nutrition and author of Pet Food Politics, What to Eat and Food Politics.

Kat: Dog lovers are howling over a new book called Time to Eat the Dog: The Real Guide to Sustainable Living. The book claims that “the carbon pawprint of a pet dog is more than double that of a gas-guzzling sports utility vehicle,” according to a report from the Agence France Presse.

The book’s authors, Robert and Brenda Vale, sustainable living experts at Victoria University in Wellington, New Zealand, estimate that a medium-sized dog’s annual diet–about 360 pounds of meat and 200 pounds of grains–requires roughly double the resources it would take to drive an SUV 6,200 miles a year.

You’ve become an expert on the pet food industry in recent years with Pet Food Politics: The Chihuahua in the Coal Mine, and your upcoming book, Feed Your Pet Right. So, what’s your take on the Vales’ claims? Is Fido really the new Hummer?

Dr. Nestle: Since Mal Nesheim is my co-conspirator on Feed Your Pet Right, this response is from both of us. Hence, “we.”

We ordered this book through Amazon in the U.K. but it is taking its own sweet time getting here. So all we really know about what these authors say is what we read in the October 24 New Scientist, which not only reviewed the book (in an article titled, “How green is your pet”) but also ran an editorial that begins, “If you really want to make a sacrifice to sustainability, consider ditching your pet – its ecological footprint will shock you.”

Oh, please. We don’t think so for two reasons, one quantitative, one qualitative. First, the quantitative:

The New Scientist review says:

To measure the ecological paw, claw and fin-prints of the family pet, the Vales analysed the ingredients of common brands of pet food. They calculated, for example, that a medium-sized dog would consume 90 grams of meat and 156 grams of cereals daily in its recommended 300-gram portion of dried dog food. At its pre-dried weight, that equates to 450 grams of fresh meat and 260 grams of cereal. That means that over the course of a year, Fido wolfs down about 164 kilograms of meat and 95 kilograms of cereals.

We don’t really have all the facts at hand. We have not seen the book, we don’t know what assumptions the authors made, and we can’t be certain that the review quotes the book accurately. Still, we are puzzled by these figures.

By our estimates, an average dog does indeed need about 300 grams of dry dog food a day; this much provides close to 1,000 calories. Fresh meat supplies about 2 calories per gram, so 450 grams would yield about 900 calories. Cereals have less water so they are more caloric; they provide nearly 4 calories per gram. The 260 grams of cereals would provide nearly 1,000 calories. If New Scientist got it right, the authors of the book are overestimating the amount of food needed by dogs by a factor of two.

On the qualitative side: Most dogs don’t eat the same meat humans do. They eat meat by-products—the parts of food animals that we wouldn’t dream of eating. These are organs, intestines, scraps, cuttings, and other disgusting-to-humans animal parts.

We think pet food performs a huge public service. If pets didn’t eat all that stuff, we would have to find a means of getting rid of it: landfills, burning, fertilizer, or converting it to fuel, all of which have serious environmental consequences. If dogs and cats ate the same food we do, we estimate that just on the basis of calories, the 172 million dogs and cats in American would consume as much food as 42 million people.

But they don’t. They eat the by-products of human food production. If we want to do something to help reverse climate change, we should be worrying much more about the amount of meat that we ourselves are eating–and the amount of cereals we are growing to feed food animals–than blaming house pets for a problem that we created.

Dec 12 2009

Food and climate change: the NYC Summit

While all of that is going on in Copenhagen, the Manhattan Borough President, Scott Stringer, along with Just Food, organized a food and climate change summit today at my university, NYU.  More than one thousand New Yorkers signed up for thirty workshops at the amazing event.  Why amazing?  Because this summit is about advocacy for a more just and sustainable food system, and right now.

My thoughts: the diet that is best for health – more fruits, vegetables, and grains, and less meat, dairy, and junk food – is also the diet that is best for the planet.

Does advocacy for a food system that provides healthy food for everyone constitute a social movement?  Look around the room at the summit.  The answer is an unequivocal YES.  Can one New York City Borough show the way.  YES.

And this one, we will win.

Nov 2 2009

Meat arguments: health, climate, taxes

If only meat were just a food and not the flash point for concerns about health, climate change, and tax policy.  But it looms large in all such debates.

According to reports, meat is linked not only with a higher rate of cancer but also with type 2 diabetes.   Does this make logical sense?  It could, especially if meat eaters take in more calories and are fatter than non-meat eaters.

We’ve heard so much lately about how farm animals contribute to environmental problems and climate change, but Nicolette Hahn Niman writes in the New York Times of “the carnivore’s dilemma.”  It’s not the animals themselves that contribute to climate change, it’s the industrial methods of raising them that are the problem.  She ought to know.  She and Bill Niman run the free-range ranch in Bolinas, California highlighted in Time magazine last August.

On the other hand, Princeton professor and ethicist Peter Singer argues in the New York Daily News that meat is so bad for health and the environment that it ought to be taxed.

How to deal with all of this?  Push for more humanely and sustainably raised farm animal production, dont’ eat meat if you choose not to, and if you do eat meat, just don’t eat too much of it.

Update, November 4: I forgot to include Jonathan Safran Foer’s piece in the New York Times magazine on why he is against meat.

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