# On the ''bicycle'' into the trees

In Dutch forests, research is being done into the possible damage that the drought and bright sunshine have caused to trees. Employees of the Stichting Verbetering Houtopstand from Wageningen climb in Douglas firs to check the trees, using a single-trunk ladder and a tree trike, rings with which one can climb into a tree along a trunk.

- Kind: Film
- By: Polygoon-Profilti (producent)
- Archive: [Europeana](https://www.europeana.eu/item/2051906/data_euscreenXL_https___www_openbeelden_nl_media_659604)
- Licence or status: [CC BY-SA 4.0](http://creativecommons.org/licenses/by-sa/4.0/) (as the archive states it)
- Credit: Netherlands Institute for Sound & Vision
- Who can watch: Teens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/europeana/2051906~data_euscreenXL_https___www_openbeelden_nl_media_659604?play=1)