Il est impossible de protéger ce qu’on ne connaît pas. La diversité naturelle se manifeste partout autour de nous sous différentes formes. C’est pourquoi notre Fondation travaille avec des individus, des partenaires et des groupes communautaires pour diffuser notre connaissance de la faune, de la flore et des milieux naturels. Nous œuvrons pour la protection de cette biodiversité afin que tous puissent l’apprécier, aujourd’hui et à l’avenir.
Faune, flore et espaces naturels

Faune, flore et espaces naturels
Province Proposes to Rescue Huronia Through Greenbelt Expansion
Yvonne Ho — January 3, 2018"Protecting Water for Future Generations" warns that increased storm water discharges created by urbanization "adds sediment to streams that can negatively impact fish and other aquatic species" and also "increase water temperature, affecting the survival of fish species such as brook trout that need cold water". It stresses that Brook Trout will not survive in warmer water created through the ecological degradation associated with urbanization.
Some of the best stories of 2017 - because of YOU!
Melissa Munro — December 29, 2017Because of your support and strong commitment to the environment, we were able to take on some very challenging campaigns this year:
You have to see this - Humpbacks at play in the Bay of Fundy
Melissa Munro — December 29, 2017I'm sleepless on the longest nights of the year
Gretchen Fitzgerald — December 22, 2017Sometimes around this time of year, sleep is hard to come by.
As you know, this is when we start looking toward next year and reflecting on how we are going to be prepared to fight for the things we care about.
Canadian Youth Unite for Lake Erie at AquaHacking Challenge 2017
Yvonne Ho — December 20, 2017As the African proverb goes, “If you want to go fast, go alone; if you want to go far, go together”. This was quoted by one of the judges to conclude the 2017 AquaHacking semi-finals competition. It epitomized a powerful theme for an evening that involved bringing people and organizations together that had been working to develop integrated water governance by promoting technological innovation in this sector. Moreover, to engage future leaders by bringing water problems to the forefront of public and private sector agendas and fostering commitment to solving them.
"Canada's Oceans: Towards 2020" - Protecting Canada's Oceans through the Power of Science, Art, and Policy
Yvonne Ho — December 18, 2017"Let's change our national motto - "From sea to sea" forgets that we have three oceans; the Arctic is largest part of our coastline. We're an ocean nation, if our youth grow up knowing that, it will change how we do things... 'From sea to sea to sea'!" - Geoff Green, Executive Director and Founder of Students on Ice
Sierra Club's Urban River Valley and Greenbelt Celebration Goes On at Mississauga's Environmental Appreciation Evening
Yvonne Ho — December 14, 2017"...The more we all know about and love the ecosystem that embeds and surrounds us, the more we feel that we are a part of it, the more we will see ways to enjoy, protect, and enhance what we have..."
BREAKING NEWS: Government of Ontario looking to expand Greenbelt by one third to protect water resources
Yvonne Ho — December 12, 2017The official announcement came on December 7th. The province is proposing to grow the Greenbelt by up to another 345,000 hectares (see Figure 1), adding on to the 810,000 hectares already in permanent existence plus the extra 10,000 hectares of urban river valley lands and wetlands that were announced this spring. This is a truly impressive proposal.
A whale of a gift for you this holiday.
Melissa Munro — November 29, 2017For you and all the whale lovers on your holiday list!
This is an exclusive treat in support of our campaign to save endangered whales!
When you make a donation today, we will send you this one-of-a-kind whale tail pendant.
We have designed this just for our committed Sierra Club supporters. It’s a beautiful statement piece, and one that suits all genders and all ages.
Sierra activist nearly expelled from Land Use Planning meeting for planned development project in Niagara
Yvonne Ho — November 29, 2017The following article was written by Dr. John Bacher, Greenbelt Campaign leader at Sierra Club Ontario, and a member of the Preservation of Agricultural Lands Society (PALS).
Guest Post: One million cubic meters of Radioactive Waste to be deposited in "Near Surface Disposal Facility" next to Ottawa River
Yvonne Ho — November 20, 2017"..The consortium proposes a “Near Surface Disposal Facility” (NSDF), a mound of one million cubic meters of nuclear waste on a hillside draining into the already highly contaminated Perch Creek wetlands, less than 1 km from the Ottawa River.
Expanding Ontario's Greenbelt into Simcoe County: Defending the Peacemaker's World
Yvonne Ho — November 17, 2017"The Peacemaker's World can only be protected by the direct action of the Ontario government putting rural lands in Simcoe into Ontario's Greenbelt, which would protect such natural wonders as the Minesing Wetlands...Rather than being seen as a controversial hot potato to be tossed around and evaded, the province needs to make a bold move that would win it plaudits from a public prone to cynicism."
Sierra Club Celebrates Ontario’s Greenbelt with cake, soup, and a hike in Niagara’s Carolinian old growth forest
Yvonne Ho — November 10, 2017The Celebration
On the afternoon of October 28th, on St. Catharine’s' Lockhart Drive in a threatened Carolinian Old Growth Forest north of the Niagara Escarpment, the Sierra Club celebrated a major environmental victory. This was the extension of Ontario's Greenbelt to 21 major urban river corridors from Northumberald to Niagara. In Niagara, this involved the protection of Lake Gibson - a reservoir for most of the drinking water for Niagara's residents.
The struggle to protect Ontario's Great Wetlands show a need to restore provincial appointments to Conservation Authority Boards
Yvonne Ho — October 19, 2017"Conservation Authorities since 1946 have played a major role in protecting Ontario’s landscape from deforestation and consequently, rescuing the province from the blights of desertification and flooding... Since changes in 1996 which made municipal councils responsible for the appointment of conservation authority boards, they have been weakened to the threats caused by urban sprawl over critical wildlife habitat."
CONTEST GIVEAWAY: 2 Free Tickets to Planet in Focus Film Festival's Wildlife Shorts Program
Yvonne Ho — October 11, 2017Planet in Focus 18th Annual Environmental Film Festival: October 19th to 22nd, 2017
Sierra Club Ontario is proud to co-present - together with Planet in Focus - their Wildlife Shorts Program, taking place:
- Date: Saturday October 21st, from 2.30-4pm.
- Venue: The Al Green Theatre at the Miles Nadal Jewish Community Centre.
Time to Celebrate: 21 New Rivers Added to Ontario's Greenbelt!
Yvonne Ho — October 5, 2017PLEASE JOIN US IN CELEBRATING 21 NEW RIVERS ADDED TO ONTARIO'S GREENBELT...
THEN
...HIKE THE ENDANGERED LOCKHART DRIVE OLD GROWTH FOREST WITH US!
Good News!
Sierra Club Ontario joins 47 ENGOs to Comment on Great Lakes Draft Binational Strategy on Persistent Toxins: PCBs and HBDCs
Becky Bassick — September 27, 2017It was a great time for learning outdoors at Riverfest in Edmonton!
PearlAnn Reichwein — September 22, 2017
Part V: The Importance of Protecting Ontario’s At-Risk Species
Yvonne Ho — September 19, 2017This blog is Part V of a 5-part blog series, as part of our Biodiversity Video Campaign.
"Ontario is home to a diverse collection of ecosystems but every year, more plants and animals are added to Ontario’s list of species at risk, which now numbers more than 200."
Biodiversity describes the diverse species of plants and animals in an ecosystem.