Imagine it’s 2030. Every child can look out their window and see trees (and the many creatures these trees support). On even the hottest days they can walk or bike along a tree-lined street to play, visit birds or hug a tree in a nearby forest. 3-30-300 builds climate resilience for extreme heat events.

1. Imagine it’s 2030.

2. Every child can look out their window and see trees
(and the many creatures these trees support)

3. On even the hottest days they can walk or bike along a tree-lined street

4. to play, visit birds or hug a tree in a nearby forest

5. Little Forests Kingston envisions Kingston as
a biodiverse “City in a Forest”.
Our mission: bring 3-30-300 tree equity to
Kingston.

6. Within five
minutes in the
trees, our heart rate
goes down and
within 10 minutes our
brain re-sets our
attention span.
Dr. Nooshin Razani
Cecil Konijnendijk

7. the increase in extreme heat events makes
this an urgent goal

8. BC’s heat dome was the deadliest weather event in Canadian history
(by a factor of 3) with 570 heat-induced deaths

9. Source: Climate Change Hazards and Impacts for City of Kingston
In Kingston, the number of days/yr greater than 30°C will increase from
6 to 48 with heatwaves lasting up to 17 days
Cooling Degree Days (CDD) are equal to the number of degrees Celsius a given day’s mean temperature is above 18 °C

10. Extreme heat events are magni
fi
ed by Urban Heat Islands (UHI) which occur
when cities replace natural land cover with dense concentrations of
pavement, buildings & hard surfaces that absorb and retain heat.

11. World Bank

12. Many cities are creating heat risk maps or heat vulnerability indexes which
combine data on heat variability, canopy and socio-economic data

13. In the B.C. heatwave lower income neighbourhoods had double the
heat-related hospitalizations and, in the poorest neighbourhood, triple

14. 3-30-300 builds climate resilience for
extreme heat events

15. Using green to cool the grey: Modelling the cooling effect of green spaces with a high spatial resolution, Filipa Grilo/sciencedirect.com
Tree canopy in
fl
uences temperature as far as 60 m,
or more, if forest size & density is particularly great
Besides having a
cooling effect, green
spaces also increase
biodiversity, save energy
while also maintaining
mental and physical
health.
Filipa Grilo, lead author

16. Increasing green cover through urban forests, parks, rooftops
and vertical gardens reduces UHI e
ff
ect

17. It’s critical that
we save the
mature trees as
long as possible until
the replanted trees
can begin to take
some impact.
Brent Bellamy, Architect
in Winnipeg
Modelling suggests that a pedestrian standing under a dense canopy could
experience temperature reductions upwards of 17 C

18. Heat-sensitive urban planning such as linear parks & green corridors also reduce
UHI e
ff
ect and enhance ventilation

19. Long, linear, continuous greenways also substantially increase biodiversity

20. Adapting to Urban Heat: A Tool Kit for Local Governments, Georgetown Climate Center
Our urban forest, with the 3-30-300 equity lens, is one of our
best tools for adapting our city to heat

21. Cities like Barcelona & Singapore are putting greenery at the centre in urban planning,
mobility, public health, sustainability, social rights and culture

22. Kingston too could do the same with smart green densi
fi
cation

23. “Promoting 15-
minute city
concepts that allow
appropriately located,
denser residential
and commercial
development within
existing built-up
areas.”
We need to integrate 3-30-300 quality green spaces &
green corridors into our 15-minute city concept

24. 3-30-300 is an elegant strategy integrating
intensification with:
- human wellbeing
- biodiversity
- climate resilience
and recognizes trees as critical urban assets

25. so instead of a “Managed Forest”
GHG

26. let’s imagine a “City in a Forest”
GHG + human well being + biodiversity + climate resilience

27. Let’s learn from examples such as Singapore & the Philippines which are integrating
ecology, agriculture & climate as drivers in urban planning

28. let’s be good ancestors,
let’s adopt 3-30-300 smart green densi
fi
cation