Skip to main content
Climate
    • What We Know
    • What Can Be Done
    • Climate Primer
    • Podcast
    • Explainers
    • Climate Questions
    • For Educators
    • News
    • Events
    • Resources
  • Search
Search
MIT

Main navigation

    • What We Know
    • What Can Be Done
    • Climate Primer
    • Podcast
    • Explainers
    • Climate Questions
    • For Educators
    • News
    • Events
    • Resources
  • Search
PostSeptember 12, 2017

How are Hunger and Climate Linked? [Hint: Food Waste]

How can it be that 13% of the world’s people are hungry while 33% of food that’s produced isn’t available for consumption?  If that weren’t outrageous enough, consider that food not available for consumption generates 4.4 gigatons of CO2/year.  That makes “food waste” the world’s third largest Greenhouse Gas emitter, after China and the US.  What is going on!?

Though it turns out that food waste is an issue in both high- and low-income countries, the causes look starkly different, depending on where you live.  Yup, you probably guessed it.   In low-income nations, causes are mostly unintended and link closely to missing or poor infrastructure (e.g., storage or transportation networks).  Breakdowns typically happen early in the chain of activities from farm to table.  Contrast that to higher income nations where much of food waste is willful and happens much closer to table.  Whether it’s a retailer or consumer rejecting food because of its looks, or people not paying attention to what portion that can really eat or prepare, few experience much guilt when it comes to food waste.  Given the GHG implications, they ought to!

What do you see as the top reasons for food waste in your country?

What can be done??

[Further reading: Drawdown, pp.42-43]

by Dave Damm-Luhr
Topics
Food, Water & Agriculture
Government & Policy
Transportation

Related Posts

PostSeptember 9, 2026

An electrochemical approach turns ammonia into pure hydrogen

MIT News
MIT researchers have developed a new way to extract pure hydrogen gas from ammonia and other hydrogen carrier molecules. Their strategy, which uses electricity to speed up the extraction, reduces the temperature and energy required to recover hydrogen from these molecules.
PostSeptember 8, 2026

Political Ideology and U.S. Electric Vehicle Adoption

MIT Center for Energy and Environmental Policy Research
PostSeptember 8, 2026

Study predicts large disparities in access to food, water, and energy in 20...

MIT News
A new study focuses on forecasting future access to food, water, and energy in 2050.
PostAugust 31, 2026

Translating economic growth into better lives

MIT School of Humanities, Arts, and Social Sciences
Enrolling in the DEDP program “has been game-changing,” graduate student Lyonel Tanganco says. “The program provides a solid foundation for understanding the world and how to make a positive, measurable difference in the lives of other people, especially the least fortunate among us.”

MIT Climate Knowledge in Your Inbox

 
 

MIT Groups Log In

Log In

Footer

  • About
  • Terms & Conditions
  • Privacy Policy
  • Accessibility
  • Contact
MIT Climate Project
MIT
  • Instagram
  • TikTok
  • YouTube
  • Simplecast
Communicator Award Winner
Communicator Award Winner