These are the 19 cities with the most trees

There's a global movement to encourage cities to grow more trees and plan more parks. On Wednesday, this year's International Day of Forests encourages urban areas to invest in green spaces.

To get a clearer picture of which cities have the most tree coverage today, MIT's Senseable Lab partnered with the World Economic Forum (WEF) to create Treepedia, a site with interactive maps that show the density of greenery in major cities around the world.

The density of trees in major cities.Image: Treepedia

The researchers used information from Google Street View to determine what they call the "Green View Index," a rating that quantifies each city's percentage of canopy coverage based on aerial images. When it launched in 2016, Treepedia featured 10 cities, but the team has since added more to its list.

The goal of Treepedia is to make make urban planning more accessible to those outside the field, MIT's Carlo Ratti said in a statement.

Check out which cities boast the highest Green View Indexes below.

19. Los Angeles, California — 15.2%

Image: REUTERS/Lucy Nicholson

Check out the interactive map of Los Angeles

18. Turin, Italy — 16.2%

Image: BI

Check out the interactive map of Turin

17. Tel Aviv, Israel — 17.5%

Image: REUTERS/Amir Cohen

Check out the interactive map of Tel Aviv

16. Boston, Massachusetts — 18.2%

Image: BI

Check out the interactive map of Boston

15. Miami, Florida — 19.4%

Image: REUTERS/Carlos Barria

Check out the interactive map of Miami

14. Toronto, Canada — 19.5%

Image: REUTERS/ Mike Cassese

Check out the interactive map of Toronto

13. Seattle, Washington — 20%

Image: REUTERS/Jason Redmond

Check out the interactive map of Seattle

12. Amsterdam, Netherlands — 20.6%

Image: REUTERS/Michael Kooren

Check out the interactive map of Amsterdam

11. Geneva, Switzerland — 21.4%

Image: REUTERS/Denis Balibouse

Check out the interactive map of Geneva

10. Frankfurt, Germany — 21.5%

Image: REUTERS/Kai Pfaffenbach

Check out the interactive map of Frankfurt

9. Sacramento, California — 23.6%

Image: Wikimedia Commons

Check out the interactive map of Sacramento

8. Johannesburg, South Africa — 23.6%

Image: REUTERS/Siphiwe Sibeko

Check out the interactive map of Johannesburg

7. Durban, South Africa — 23.7%

Image: BI

Check out the interactive map of Durban

6. Montreal, Canada — 25.5%

Image: BI

Check out the interactive map of Montreal

5. Sydney, Australia – 25.9%

Image: REUTERS/Daniel Munoz

Check out this interactive map of Sydney

4. Vancouver, Canada — 25.9%

Image: REUTERS/Andy Clark

Check out the interactive map of Vancouver

3. Oslo, Norway — 28.8%

Image: REUTERS/Ints Kalnins

Check out the interactive map of Oslo

2. Singapore — 29.3%

Image: REUTERS/Edgar Su

Check out the interactive map of Singapore

1. Tampa, Florida — 36.1%

Image: REUTERS/Chris Wattie

Check out the interactive map of Tampa