Welcome to TREA

TREA’s (Thames Region Ecological Association) main goal is to educate its members and community to protect the environment, stay informed and take personal action. We also have an entrepreneurial streak given that TREA encourages citizen participation and innovative projects from and for the community.

Making a positive impact in our community

Waste & Recycling

Learn how to reduce waste through individual habits and larger events

Active Transportation

Learn the best practices and practical strategies for active transportation

Reducing Fossil Fuels

Gain practical knowledge & network to reduce reliance on fossil fuels

TREA projects support our strategic goals of increasing waste diversion, active transportation and reducing fossil fuel usage. These projects, in collaboration with other community organizations, have provided opportunities for residents to engage in more sustainable activities. We encourage self-sufficiency given TREA’s strong interest in relocalization, climate change stability, and energy conservation – which are important topics to Londoners.

Our News

Upcoming Winter 2026 Workshops!

TREA wraps up 2025!

Earthfest 2026

Earthfest is coming back for its 5th year! Join us again for this free yearly event in recognition of Earth Day.

We are once again overseeing the Earthfest passport for attendees to fill out and bring to the TREA space in the library to collect a small gift in appreciation for their completing the passport.  

Find more information here.

Thank you for joining TREA at our workshop series

Designing an edible neighbourhood
Kensington Village Association
With Gabor Sass
Wednesday February 18, 7-8pm

Introduction to homesteading
New Moon Community Homestead
With Mike Courey
Wednesday February 25, 7-8pm

Introduction to permaculture
Wild Craft Permaculture
With Jessica Robertson
Wednesday March 4, 7-8pm

More info on the workshop topics here.

Compost Value Day 2026

Mark your calendar, Compost Value Day, our annual spring fundraiser, takes place this year on May 2, 8-12 noon or until we run out!
This event supports local non-profit charities including TREA, the London Food Bank, BGC London (Boys and Girls Club), and the London Community Resource Centre. Residents can buy nutrient-rich excellent compost from us made from local yard waste decomposition by Try Recycling and the City of London to nurture your gardens and lawns. 

Look for TREA and LURC at the Richmond North Office Centre – 235 North Centre Road (north of Fanshawe Park Road and Masonville Mall).

The London Food Bank and BGC London will be at the Food Bank – 926 Leathorne Street (off Adelaide St. S near Commissioners Rd).

Bring your own containers and shovel if you have them. Otherwise we have pre-bagged compost available for $1 more. See you soon!

Clothing Drive at Earthfest 2026!

Earthfest is running a Clothing Drive which supports Circular Economy action as a fundraiser for “+Positive Voice”, an Indigenous award winning program that supports the development of positive narratives and community connection in collaboration with Talize thrift stores. Drop off donated resalable clothing at any of the 3 Earthfest Information tables.

Circular Economy

Circular economy is an important consideration in a sustainable future. Check out TREA’s informational page on circular economy here

Thank you to TD’s Friends of the Environment Foundation for supporting this important work.

CAN-Bike Courses

TREA supports CAN-Bike course instruction – to register follow up to info@canbikelondon.ca for details.

London’s Climate Action Plan

London’s Climate Action Plan can be read online! Access workplans and other supporting documents here.

The new Climate Emergency Action Plan is a community-wide plan to achieve three main goals: 

  1. Net-zero community greenhouse gas (GHG) emissions by 2050.
  2. Improved resilience to climate change impacts.
  3. Bring everyone along (e.g., individuals, households, businesses, neighbourhoods).

There is also an opportunity for YOUR feedback. Contact the project team by emailing climateaction@london.ca

Get Involved!

Ask TREA to get involved with your composting and recycling strategies

TREA in the Community

“Thames Regional Ecological Association is a key environmental organization in London. They are advocates for tangible change in public behaviour and are a wonderfully open, inclusive and collaborative group, and they work hard to support a wide variety of community groups, such as summer festivals.

Catherine McInnes – Former Artistic Director Home County Music and Art Festival

TREA Supporters

Joseph Rea Environmental Fund