Today’s Solutions: December 18, 2025

We recently shared how an innovative playground in Poland uses algae to capture CO2 and create a safer play space for children. Now, that same concept has traveled to the COP26 climate conference where it is gaining international attention in the form of a children’s bounce house.

At first glance, the bounce house looks like any other you would find at a fair or children’s birthday party, but what sets this clear version apart is that it is home to microscopic algae which get bounced around by the moving children to feed on carbon and minerals in the air. The more kids bounce, the more CO2 is absorbed.

The algae then turn this CO2 into biomass which can be used for nutrients or biomaterials. Although the technology takes a playful form in this case study, Ecologicstudio researcher Marco Poletto explains that it could be incorporated into other infrastructure elements as well to capture emissions and reduce air pollution. One Eastbank Primary student who tested out the bounce house said, “I really like this and I would love to have it in our playground.”

Image source: Ecologicstudio

Solutions News Source Print this article
More of Today's Solutions

New method uses sound waves to map soil health, stop famine, and restore farm...

BY THE OPTIMIST DAILY EDITORIAL TEAM Across the world, soil scientists are trading in their shovels for something unexpected: seismic sensors. In a breakthrough ...

Read More

This simple 15-minute mindset exercise can ease anxiety, science shows

BY THE OPTIMIST DAILY EDITORIAL TEAM A growing body of research is revealing how a short, simple activity that is done in just 15 ...

Read More

3 habits of the happiest people

Think of the happiest people you know. Do you find yourself often wondering what they are doing to maintain a general level of joy? ...

Read More

Changemakers of the week: GRuB and SparkNJ

Every day on the Optimist Daily, we report on solutions from around the world. Though we love solutions big and small, the ones that ...

Read More