Our resident ethnobiologist explores the secrets and treasures of Poland’s meadows and forests, including saskatoon, lindenflower, and Himalayan balsam.

An encounter with an ancient oak tree named Bartek, as experienced and retold by a biologist and poet.

Our ancestors lived in trees millions of years ago. Perhaps that’s why humans seem intent on returning to them.

Building a tree house from wood should be an easy task, if you follow this architect’s simple instructions.

All around us are magic machines that suck carbon out of the air, cost very little and build themselves. Trees – in all their gorgeous variety and spectacular beauty – can make a massive difference to the world, if we accept one condition: we have to leave fossil fuels in the ground, where they belong.

An encounter with an ancient oak tree named Bartek, as experienced and retold by a biologist and poet. Original text by Urszula Zajączkowska. Read by Sean Palmer.

Our ancestors lived in trees millions of years ago. Perhaps that’s why humans seem intent on returning to them. Original publication by Łukasz Stępnik. Read by Andy Edwins.