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Make London healthier and leafier: Plant a tree. Register your tree. Become a Partner. more
London's Leafy Leaders View All
Top Planters of 2020
Small OrganizationsAlvarez Roofing Solutions Inc.
Medium OrganizationsBe the first!
SchoolsBe the first!
Large OrganizationsBe the first!
Community GroupsBe the first!
Planting OrganizationsBe the first!
About the Benefits Calculator
The Tree Benefits Calculator is a promotional tool based on information from the "Tree Guidelines for San Joaquin Valley Communities" by McPherson, Simpson, Peper, and Xiao, U.S. Forest Service, Center for Urban Forest Research, March 1999 and the Sacramento Tree Foundation. The calculator assumes an average mix of small, medium, and large trees in the Sacramento region, as well as an average mix of public and private trees.
National Tree Benefits Calculator
For a more precise calculation of an individual tree's benefits based on species and location, visit the National Tree Benefits Calculator.
See the environmental benefits trees can have over time (learn more)
Enter the number of trees you would like to calculate:
Move the slider to see how the benefits increase as the trees age:
Look at all the benefits!
Energy Savings (learn more)
Trees help us save energy by
- Shading our homes, helping us conserve our energy use for air conditioning in summer months.
- Releasing water vapor into the air, which makes our air cooler.
- Sheltering our homes from cold northerly winds, helping us conserve heat in winter months.
Properly planted shade trees can reduce summer cooling costs by 30%
Cleaner Air (learn more)
Trees clean our air by
- Pulling pollutants, like ozone and nitrogen oxides, directly from the air.
- Capturing harmful particulate matter, like dust, ash, pollen, and smoke, on leaf surfaces.
- Providing clean oxygen for us to breath.
One large tree provides enough oxygen for four people to breath.
Carbon Dioxide (learn more)
Trees reduce the amount of climate changing carbon dioxide (CO2) by
- Directly storing CO2 in their wood and leaves.
- Sheltering our buildings and reducing the demand for heating and air conditioning, which mean less CO2 in the production of energy.
Over its lifetime, a single large tree soaks up about 5.5 metric tonnes of carbon. That is about equal to the yearly carbon emission of an average car in the Canada.
Water Quality (learn more)
Trees improve our water quality by
- Capturing rainfall on leaves and branch surfaces, which helps reduce runoff and protects us from flooding.
- Giving water a chance to sink into the ground, recharging our underground water stores.
- Reducing erosion by keeping rain from washing soil away from barren surfaces.
One large tree can capture over 1,800 litres of storm water every year.
About London's Million Tree Challengeour partnersour sponsors
London's Million Tree Challenge is a community-wide initiative to inspire Londoners to plant one million new trees across the city - in every corner and neighbourhood. Trees provide many benefits including improved air quality, reduced heating and cooling costs, shadier more walkable streets, increased home values, more attractive shopping and downtown areas and greener recreation areas. Londoners are invited to register all the trees they have planted since January 2011 and see the big tree counter tick toward one million. Any tree, planted anywhere, by anyone counts!
Your organization can become an official Million Tree Challenge Partner by promising to undertake some kind of action in support of trees in London. The action can be big or small - whatever fits with your organizational culture and interests. Every action makes a difference and helps keep the 'forest' in the Forest City.
Join the growing list of Million Tree Challenge Partners and community leaders who are making London healthier and greener. Become a Partner, check out the Million Tree Challenge newsletter and LIKE Million Tree Challenge on Facebook. Imagine how healthy and beautiful London could be with one million more trees.
sheila [at] reforestlondon [dot] ca (Questions? Email Us)
A Million Tree Challenge Partner is an organization that has officially committed furthering the goals of the Million Tree Challenge in some way. Each Partner chooses a participation level and method that best suits their organization's interests and capacity - from no-cost awareness right up to multi-year sponsorship - whatever fits their organization's culture, goals, budget and resources.
The following organizations are community leaders who are committed to making London greener and healthier.
MTC Platinum Sponsor $50,000
Richard and Beryl Ivey Fund
A fund within the London Community Foundation
MTC Silver Sponsors $10,000
MTC Bronze Sponsor $5,000
MTC Supporting Sponsors $1,000Bentley Hearing Services
Citi Cards Canada
Forest City Road Races
Form and Build Supply Inc.
Friends of the Civic Garden Complex
New Balance London
The Tea Haus
Waste Solutions Canada
I Need a TreeSuggest a Location Sponsor a tree! Useful information about planting trees
What kind of tree should I plant?
We recommend planting native species. ReForest London's list of native trees and shrubs will give you a list of trees native to Southwestern Ontario.
It is very important to plant the right tree in the right place. This online tool can help you choose the right tree for your space.
How do I plant a tree?
Follow these simple instructions to plant a tree in your yard.
How do I take care of my new tree?
Follow these simple instructions to care for your new tree.
I want to plan a larger project for my neighbourhood or school. Who can help?
Where can I buy trees in the London area?
Here is a list of area nurseries and landscapers. The Million Tree Challenge provides this list for your information and does not endorse any of these companies.
Support the Million Tree Challenge by sponsoring a tree or tree planting project in the Forest City.
Some Reasons for Sponsoring a Tree
- I want to support the Million Tree Challenge.
- I've planted my tree and want to help others.
- I am unable to plant my tree so I want mine planted by someone else.
- I live in an apartment, condo or rent and am unable to plant trees at my residence.
- I want to help support environmental groups to plant trees in the city.
Sponsor a tree or many trees by making a donation to ReForest London, a non-profit charitable organization, and join the challenge! Donors will receive a charitable tax receipt.