The ModernEncyclopedia Est. 2026 · A living curriculum · Regularly updated
HOR-8 · Tech Horizons · Living entry

Learn Climate Tech & Earth Systems with any AI

Engineering a liveable planet

Climate tech is the fast-growing field building the tools to limit and adapt to climate change — carbon removal, resilience, the circular economy, and the fraught idea of deliberately engineering the climate. The underlying climate science is settled; this node is about what we do about it.

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HOR-8 · Climate Tech & Earth Systems
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§02

A map of Climate Tech

Tools for a warming world

The response, across several fronts.

  • Adaptation & resilience — coping with the warming already locked in.
  • Carbon removal — taking CO₂ back out of the air.
  • Geoengineering — the high-stakes idea of deliberately cooling the planet.
  • The circular economy — designing waste out of the system.
  • Nature-based solutions — forests, wetlands and soils as carbon stores.
§03

The canon

The science behind the response

Real foundations.

  • The carbon cycle — how carbon moves between air, land, ocean and life.
  • Planetary boundaries — the framework of limits within which humanity can safely operate.
  • Carbon capture & removal — the developing science of drawing down emissions.
  • Nature-based solutions — rewilding and restoration as climate tools.
  • The IPCC — the body that synthesises the world's climate science.
§04

The live debates

The climate-response debates

Genuine, high-stakes disagreements — not about whether, but how.

  • Mitigation vs adaptation. Cutting emissions versus coping with impacts — where to put effort and money.
  • Geoengineering. Necessary insurance, or dangerous hubris with global side-effects? A real, serious split.
  • Carbon removal. Essential tool, or a licence to keep emitting?
  • Green growth vs degrowth. Whether prosperity and deep decarbonisation are compatible.
  • Climate justice. Who caused the problem, and who pays to fix it.
§05

Where to start

A route in

A route in — everything runs from the panel above.

  1. Run Orientation on the climate solution space.
  2. Use Great Debates on geoengineering — one of the most consequential arguments of the century.
  3. Connect to Earth Science (the diagnosis) and Energy (the biggest lever).
  4. Turn on web search and run The Frontier for the latest.

The science of the problem is settled; the argument is all about the solutions — which is exactly where this node lives.