Day Lila
All courses

Subject

Climate & Energy

2 courses, 30 lessons. Start anywhere; nothing here assumes the rest.

Beginner-friendly

How the planet holds its heat

Work out where the extra heat comes from, where it goes, and why swapping the energy behind it is slow.

The chapters

  1. 1The blanket4 lessons
  2. 2What one degree does4 lessons
  3. 3Where the energy comes from4 lessons
  4. 4Changing it3 lessons
15 lessons · about 71 min Start
Beginner-friendly

Sustainability: what can keep going

Work out whether a thing is being used faster than it comes back, who pays when a cost lands next door, how a footprint is counted, and who checks the claim.

The chapters

  1. 1What sustainable means4 lessons
  2. 2Who pays4 lessons
  3. 3How a footprint is counted4 lessons
  4. 4Who checks3 lessons
15 lessons · about 71 min Start