LDD moth caterpillars, which can be recognized by their red and blue spots, have become widespread in the city. Although these caterpillars can chew through a considerable amount of plant cover, the caterpillar is not harmful.

Montréal’s Nature and Sports Plan aims to enhance the city’s large parks and sports facilities. It sets out tangible actions to protect biodiversity and our natural heritage while promoting a healthy and active lifestyle to the population.

The Système alimentaire local et intégré à Montréal (Montréal Local and Integrated Food System - SALIM for short) helps food security organizations to source supplies and distribute more fresh, local food. By pooling food resources, the project brings local producers closer to vulnerable people.

Every spring, every summer, the green and blue patrols travel across the city to raise awareness of environmental issues. Easily recognizable by their green or blue polo shirts, the squads encourage the public to take actions to protect the environment.

Car, bike and kitchen sharing, and building urban greenhouses are just some of the initiatives that have been launched under Montréal in Common. The goal is to improve the population’s quality of life and share the wisdom gained from these experiments.

Moving or a major clean-up takes organization. There are lots of things to manage. What should you give away, throw away or recycle?

Discover highlights from the 2022 environmental report on air quality in Montréal.

Is your neighbourhood under a water use advisory due to contaminated tap water? Please follow these instructions until water service is restored.

Is your neighbourhood under a drinking water advisory due to contaminated tap water? Please follow these instructions until water service is restored.

What are the risks of a drinking water contamination or shortage in Montréal? What measures does the city take to inform and assist residents in the event of a disaster? Follow our guidelines on how to stay safe and protect your health.