FREE NEWSLETTER: Econintersect sends a nightly newsletter highlighting news events of the day, and providing a summary of new articles posted on the website. Econintersect will not sell or pass your email address to others per our privacy policy. You can cancel this subscription at any time by selecting the unsubscribing link in the footer of each email.

posted on 26 March 2016

Going Veggie Would Cut Global Food Emissions By Two Thirds And Save Millions Of Lives New Study

from The Conversation

-- this post authored by Marco Springmann, University of Oxford

Eating more fruit and vegetables and cutting back on red and processed meat will make you healthier. That's obvious enough. But as chickens and cows themselves eat food and burn off their own energy, meat is a also major driver of climate change. Going veggie can drastically reduce your carbon footprint.

This is all at a personal level. What about when you multiply such changes by 7 billion people, and factor in a growing population?

In our latest research, colleagues and I estimate that changes towards more plant-based diets in line with the WHO's global dietary guidelines could avert 5m-8m deaths per year by 2050. This represents a 6-10% reduction in global mortality.

Food-related greenhouse gas emissions would also be cut by more than two thirds. In all, these dietary changes would have a value to society of more than US$1 trillion - even as much as US$30 trillion. That's up to a tenth of the likely global GDP in 2050. Our results are published in the journal PNAS.

Future projections of diets paint a grim picture. Fruit and vegetable consumption is expected to increase, but so is red meat consumption and the amount of calories eaten in general. Of the 105 world regions included in our study, fewer than a third are on course to meet dietary recommendations.

A bigger population, eating a worse diet, means that by 2050 food-related GHG emissions will take up half of the "emissions budget" the world has for limiting global warming to less than 2℃.

To see how dietary changes could avert such a doom and gloom scenario, we constructed four alternative diets and analysed their health and environmental impacts: one reference scenario based on projections of diets in 2050; a scenario based on global dietary guidelines which includes minimum amounts of fruits and vegetables, and limits to the amount of red meat, sugar, and total calories; and two vegetarian scenarios, one including eggs and dairy (lacto-ovo vegetarian), and the other completely plant-based (vegan).

Millions of avoidable deaths

We found that adoption of global dietary guidelines could result in 5.1m avoided deaths per year in 2050. Vegetarian and vegan diets could result in 7.3m and 8.1m avoided deaths respectively. About half of this is thanks to eating less red meat. The other half comes thanks to eating more fruit and veg, along with a reduction in total energy intake (and the associated decreases in obesity).

There are huge regional variations. About two thirds of the health benefits of dietary change are projected to occur in developing countries, in particular in East Asia and South Asia. But high-income countries closely follow, and the per-person benefits in developed countries could actually be twice as large as those in developing countries, as their relatively more imbalanced diets leave greater room for improvement.

Room for improvement. Lightspring / shutterstock

China would see the largest health benefits, with around 1.4m to 1.7m averted deaths per year. Cutting red meat and reducing general overconsumption would be the most important factor there and in other big beneficiaries such as the EU and the US. In India, however, up to a million deaths per year would be avoided largely thanks to eating more fruit and vegetables.

Russia and other Eastern European countries would see huge benefits per-person, in particular due to less red meat consumption. People in small island nations such as Mauritius and Trinidad and Tobago would benefit due to reduced obesity.

Vegans vs climate change?

We estimated that adopting global dietary guidelines would cut food-related emissions by 29%. But even this still wouldn't be enough to reduce food-related greenhouse gas emissions in line with the overall cutbacks necessary to keep global temperature increases below 2°C.

India could cut its emissions and save lives - at the same time. Christopher Fynn, CC BY

To seriously fight climate change, more plant-based diets will be needed. Our analysis shows if the world went vegetarian that cut in food-related emissions would rise to 63%. And if everyone turned vegan? A huge 70%.

What's it worth?

Dietary changes would have huge economic benefits, leading to savings of US$700-1,000 billion per year globally in healthcare, unpaid informal care and lost working days. The value that society places on the reduced risk of dying could even be as high as 9-13% of global GDP, or US$20-$30 trillion. Avoided climate change damages from reduced food-related greenhouse gas emissions could be as much as US$570 billion.

Putting a dollar value on good health and the environment is a sensitive issue. However, our results indicate that dietary changes could have large benefits to society, and the value of those benefits makes a strong case for healthier and more environmentally sustainable diets.

The scale of the task is clearly enormous. Fruit and vegetable production and consumption would need to more than double in Sub-Saharan Africa and South Asia just to meet global dietary recommendations, whereas red meat consumption would need to be halved globally, and cut by two thirds in richer countries. We'd also need to tackle the key problem of overconsumption. It's a lot to chew on.

The ConversationMarco Springmann, Researcher, University of Oxford

This article was originally published on The Conversation. Read the original article.

>>>>> Scroll down to view and make comments <<<<<<

Click here for Historical News Post Listing

Make a Comment

Econintersect wants your comments, data and opinion on the articles posted.  As the internet is a "war zone" of trolls, hackers and spammers - Econintersect must balance its defences against ease of commenting.  We have joined with Livefyre to manage our comment streams.

To comment, using Livefyre just click the "Sign In" button at the top-left corner of the comment box below. You can create a commenting account using your favorite social network such as Twitter, Facebook, Google+, LinkedIn or Open ID - or open a Livefyre account using your email address.

You can also comment using Facebook directly using he comment block below.

Econintersect Contributors


Print this page or create a PDF file of this page
Print Friendly and PDF

The growing use of ad blocking software is creating a shortfall in covering our fixed expenses. Please consider a donation to Econintersect to allow continuing output of quality and balanced financial and economic news and analysis.

Take a look at what is going on inside of
Main Home
Analysis Blog
A Short Note on a Connection Between Marginalist Economics and Folk Medicine
Run A High Pressure Economy? Janet Yellen Does Not Understand the Problem
News Blog
Ten Ways To Live A Happier Life According To Animals
21 October 2016: ECRI's WLI Growth Index Again Declines
Advance Estimate 3Q2016 GDP Quarter-over-Quarter Growth at 2.9 Percent.
Rail Week Ending 22 October 2016 Better Than The Previous Week
What Happens After The Islamic State Loses Mosul
Infographic Of The Day: The History Of Women's Ice Hockey In Canada
Early Headlines: Asia Stocks Mixed, Huge Antarctic Marine Park, Can Trump Get To 270?, US Workers Gaining, UK Inflation, France GDP, India Savings Lag And More
Why Amazon Gives So Many Perks To Prime Members
Where Workplace Trust Is Strongest
How A Lack Of Sleep Affects Your Brain - And Personality
How Accurate Are Final US Election Polls
What We Read Today 27 October 2016
A Pony And His Beloved Teddy Bear Reunite After Being Apart For 3 Years
Investing Blog
Technical Thoughts: Looking For The Rebounds
Gold That Pays Dividends
Opinion Blog
Global Debt Investors: The Silence Of The Lambs
A Hard Brexit And Reduced Migration Won't Benefit UK Workers
Precious Metals Blog
Inflation Surging As Platinum Signals Stock Market Decline
Live Markets
28Oct2016 Market Close: US Stock Markets Close Fractionally Lower After FBI Opens Probe Into Hillary's Emails Over Shadows Positive GDP Report, Indicators Fractionally Bearish
Amazon Books & More

.... and keep up with economic news using our dynamic economic newspapers with the largest international coverage on the internet
Asia / Pacific
Middle East / Africa
USA Government

Crowdfunding ....



Analysis Blog
News Blog
Investing Blog
Opinion Blog
Precious Metals Blog
Markets Blog
Video of the Day


Asia / Pacific
Middle East / Africa
USA Government

RSS Feeds / Social Media

Combined Econintersect Feed

Free Newsletter

Marketplace - Books & More

Economic Forecast

Content Contribution



  Top Economics Site Contributor TalkMarkets Contributor Finance Blogs Free PageRank Checker Active Search Results Google+

This Web Page by Steven Hansen ---- Copyright 2010 - 2016 Econintersect LLC - all rights reserved