Posted on 9 August 2026 by BaerbelW

In April 2026 we published a guest blog post by John Lang in which he introduced his "Climate Trunk" graphics project and website. Since then, he has been adding one graphic per week and plans to keep going for about 2 years rounding out the big picture of human-caused climate change graphic by graphic. In this blog post we'll show-case the graphics related to economics and will keep adding more as they get published.

The incentives, costs, markets and capital flows that drive decision-making.

#16 - Learning by doing

Every doubling of global solar capacity has made solar panels about 20% cheaper. That relentless cycle of learning, innovation and scale has transformed solar into the world's cheapest source of new electricity and one of the fastest-growing technologies in history.

How making more solar made it 99.9% cheaper.

... to be continued.

Follow these links to dive into the other Climate Trunk rings: Science, Impacts, Political Economy, Governance, Solutions, Energy, Daily Life.