When ancient wisdom beats modern industry - Rebecca Webster

433,580 views ・ 2024-02-20

TED-Ed


Please double-click on the English subtitles below to play the video.

00:10
One fall evening in 1779,
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Seneca Chief Handsome Lake lay down
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for what he thought would be his final rest.
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Instead, he had a vision that would change his life—
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and countless others.
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Before this moment, the US military had unleashed a brutal, months-long campaign
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that plunged Handsome Lake’s village,
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and the larger Haudenosaunee Confederacy it belonged to,
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into turmoil.
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The military’s attacks on the Haudenosaunee,
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who they commonly referred to as the Iroquois,
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destroyed entire communities and killed many.
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Suffering illness and despair,
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Handsome Lake prepared for death when suddenly,
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he found himself walking through a planted field.
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He felt something graze his shoulder and heard a woman call out behind him.
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01:04
But when he turned around, all he saw were the long, golden leaves of corn
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brushing against his shoulders.
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Again, he heard the woman’s voice.
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She told Handsome Lake that she could sense his thoughts,
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and that the recent devastation had also left her and her sisters
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with little hope for the future.
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She asked if they could join him on his journey toward death.
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At that moment, Handsome Lake realized the woman speaking was the spirit of the corn—
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her sisters, the spirits of the beans and squash.
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For generations, the Haudenosaunee had sustained themselves off these crops,
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known as the Three Sisters.
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Planted together in the same mound, each sister helped the others grow.
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First, the corn, the eldest sister,
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provides a long stalk that acts as a sturdy trellis.
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Then the second sister, beans,
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sends out its stems with touch-sensing tips that search for nearby supports.
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When they encounter the corn stalk, they wrap around it and climb upwards,
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their leaves capturing ever more light.
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Reciprocally, when the corn faces heavy winds,
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the bean plant provides structural support.
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It also helps the corn grow by boosting the amount of available nitrogen—
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an essential nutrient for plant growth.
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The bean plant does this by releasing chemical messengers from its roots,
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attracting rhizobia,
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a kind of nitrogen-fixing bacteria living in the soil.
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The bacteria infiltrate its cell walls,
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then begin siphoning food from the bean plant.
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And in return, the rhizobia bacteria convert atmospheric nitrogen
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into a form of nitrogen the plants can use for growth.
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The third and lowest-lying sister, squash,
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produces large, umbrella-like leaves that shade the soil and keep it moist.
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Some squash varietals are even equipped with prickly hairs,
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which protect the Three Sisters from foraging animals.
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Handsome Lake realized that if he left the world at that moment,
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he would take the millennia-old knowledge of the Three Sisters with him,
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uprooting tradition, depriving his community of a lifeline,
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and estranging the sisters from one another.
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He couldn’t bear this fate.
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So he promised instead to stay and re-teach his community
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how to care for the Three Sisters
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and allow the crops to provide for them in return.
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Today, the Haudenosaunee continue to grow the Three Sisters.
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And the ancient farming practice has inspired solutions to many issues
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caused by modern and industrial farming.
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For example, monocropping,
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where farmers plant a single type of plant in a field year after year,
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depletes soil of nutrients.
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And, as of 2022, it’s estimated that one third of the world’s soil
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is moderately to highly degraded.
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While a majority of US farmland now utilizes some form of crop rotation,
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this practice alone might not adequately replenish the soil.
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Meanwhile, crops tend to use ground nutrients more efficiently
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when grown together in close proximity, like the Three Sisters.
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Many modern farms also overuse nitrogen-based fertilizers.
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But since crops, on average, take up only half the nitrogen
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released by these fertilizers,
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the remainder is broken down by microbes in the soil
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and released as greenhouse gases—
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or it washes away and pollutes local bodies of water.
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Planting beans, however, can decrease the need for fertilizer.
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And current industrial farming practices are also water-intensive,
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demanding over 70% of the world's water.
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Incorporating low-lying cover crops like squash, however,
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can increase the soil’s water-holding capacity.
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The success of the Three Sisters shows us that there are more sustainable ways
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to grow food.
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And they’re just one example of regenerative agriculture—
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a practice with ancient roots that recognizes nature
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as a dynamic, interconnected system.
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By implementing regenerative principles, we can aid— not degrade—
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the land that gives us food,
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while honoring those who preserved this transformative, traditional knowledge.
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