Event posted by Nadine Moreby
![](https://oppla.eu/sites/default/files/styles/scale_to_300px_wide/public/image/events/webinar-3-graphic.png?itok=P9e6qHYS)
Thursday, 13 January 2022 - 14:00 to 15:00 (Europe/Brussels)
On-line webinar
During this session, Keith Sacre (Director of Treeconomics and Barcham Trees) and Cecil Konijnendijk (co-founder of the Nature Based Solutions Institute) will discuss tree diversity and the '3-30-300 rule' in an interview-style webinar, with an open Q&A session.
The ‘3-30-300 rule’ is an evidence-based rule proposed by Cecil Konijnendijk, which stipulates that everyone should be able to see at least 3 trees from their home; there should be 30% tree canopy cover in each neighbourhood; and 300 metres should be the maximum distance to the nearest high-quality public green space.
Anybody with an interest in urban trees and healthy urban spaces should find this webinar useful.