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TED Talks Daily

Can we hack photosynthesis to feed the world? | Steve Long

Nov 29, 2023
Steve Long is a leading crop scientist dedicated to revolutionizing photosynthesis to improve food production and combat climate change. He explains the inefficiencies in current photosynthesis processes and discusses innovative digital models designed to enhance crop productivity. Long shares insights on genetic modifications that can yield sustainable results, like the insect-resistant cowpea in Nigeria. He emphasizes the urgency of these advancements in addressing food shortages and adapting to rising carbon dioxide levels.
11:31

Episode guests

Podcast summary created with Snipd AI

Quick takeaways

  • Improving crop photosynthesis at the genetic level can significantly increase crop yields, helping address food insufficiency.
  • Using a digital twin system to model and optimize photosynthesis can lead to specific genetic improvements and over 20% increase in crop yields.

Deep dives

Improving photosynthesis can alleviate food insufficiency

The podcast discusses how improving crop photosynthesis at the genetic level can help address the issue of food insufficiency. The speaker explains that the rising demand for food, especially in poorer countries, is outpacing our ability to supply it. While photosynthesis is a crucial process that plants use to convert carbon dioxide into food, our most productive crops are only achieving one-fifth of the potential efficiency of this process. The speaker introduces the concept of using a digital twin, a system that models photosynthesis using differential equations, to identify areas for genetic improvements. By making specific changes to genes and proteins involved in photosynthesis, the speaker and their team have already achieved over 20% increase in crop yields. These advancements in photosynthesis have the potential to alleviate food insufficiency and protect the environment.

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