Skip to main content
Climate
Search

Main navigation

  • Climate 101
    • What We Know
    • What Can Be Done
    • Climate Primer
  • Explore
    • Podcast
    • Explainers
    • Climate Questions
    • For Educators
  • MIT Action
    • News
    • Events
    • Resources
  • Search
MIT

Main navigation

  • Climate 101
    • What We Know
    • What Can Be Done
    • Climate Primer
  • Explore
    • Podcast
    • Explainers
    • Climate Questions
    • For Educators
  • MIT Action
    • 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

PodcastApril 9, 2026

Re-air and update: Carbon pricing

Ask MIT Climate Podcast
Ask MIT Climate
PostApril 6, 2026

Connecting climate and sustainability: Synergies and tradeoffs

MIT Center for Sustainability Science and Strategy
MIT Global Change Forum 48
PostApril 2, 2026

MIT researchers measure traffic emissions, to the block, in real-time

MIT News
New work by MIT researchers shows how to generate nearly real-time vehicle emissions information — which can measure the effects of policy changes, such as New York City's congestion pricing.
PodcastMarch 26, 2026

E5: The (micro)grid of the future

Ask MIT Climate Podcast
Ask MIT Climate

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