David Suzuki’s test tube video

David Suzuki explains the limits to growth using a test tube of bacteria food slowly filling with bacteria as a metaphor for our overconsuming planet.

In this four minute video, assuming exponential growth, we see the screen gradually fill with digital bacteria. The test tube fills with bacteria in an hour and there is no food left. But at 55 minutes it’s only 3% full, at 58 minutes it’s only 25% full and at 59 minutes half full.

He notes that if scientists invent three new test tubes of food in that last minute (i.e. capitalism’s technological solution for the limits to growth – the equivalent of 3 new planets), all four test tubes will be full in 62 minutes!

Spend a minute in a test tube with David Suzuki.

We need system change, not climate change!

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