Problem → Fix

Solutions

Each card pairs a planetary problem with a technology that already works. Filter by topic, then follow the proof.

Freshwater scarcity

River & coastal pollution

Deforestation

Problem: Slow-growing timber drives logging of old forests.
Fix: Fast-growing plantation species and sustainable forestry for building wood — pressure off wild forests.

Food waste & methane

Urban heat

Problem: Dark roofs and asphalt trap heat and spike energy use.
Fix: Cool roofs and reflective coatings lower temperatures and cut AC demand.

Cement emissions

Problem: Ordinary cement is a major source of global CO₂.
Fix: Lower-clinker cements (e.g. calcined clay & limestone blends) cut emissions at scale.

Plastic leakage

Problem: Rivers carry most plastic to the sea.
Fix: River interceptor barriers catch litter upstream — cheaper than ocean cleanup alone.

Unreliable dirty power

Problem: Fossil grids lock in emissions and leave remote places in the dark.
Fix: Solar microgrids deliver clean, local power where big plants don’t reach.