Green Code 2020
summary
IT work now generates 4% of global CO2 and may reach 14% by 2040, with cryptocurrencies alone matching Argentina’s footprint and a single Bitcoin transaction using a household’s two months of energy. Algorithm choice matters: one iterative Towers of Hanoi used almost five times more energy than a recursive version; training a common AI model emits about 28 tons CO2. Practical fixes include the Website Carbon Calculator, Lighthouse for front‑end CPU profiling, dark mode on OLED and the Green Software Foundation’s open measurement tools.
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chapters (12)
- 0:00Carbon footprint of IT
- 1:13Green code history
- 2:39Algorithm efficiency and energy
- 4:04Energy efficiency across programming languages
- 5:09Energy efficiency formula
- 5:30Cryptocurrencies' energy waste
- 6:35AI training's environmental cost
- 7:20Website carbon footprint
- 8:23Frontend energy and UX
- 9:28Dark mode efficiency
- 9:49Green Software Foundation
- 10:31Call to action
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