Discover How Your Community Affects the Environment

Every day, people in communities across Canada make choices that affect the natural world. You will learn how human activities like driving cars, cutting down trees, and throwing away garbage change the environment around us. Understanding these effects helps you become a responsible steward of the land, water, and air.

This topic connects to what you already know from Human Effects on Nature and builds toward deeper learning in Human Effects and Ecosystems.

When factories release smoke into the air, they create smog a mix of vehicle exhaust and industrial emissions that makes it hard to breathe. When farmers use too many pesticides, those chemicals can wash into nearby streams through runoff, harming fish and other water animals.

Clear-cutting is a logging practice where entire sections of forest are removed. This destroys wildlife habitats and causes erosion, where wind and water wear away the land. Burning fossil fuels releases greenhouse gases that warm the climate, melting Arctic sea ice and making it harder for polar bears to hunt.

Oil spills coat seabirds' feathers, destroying their ability to fly and stay warm. When people dump garbage into rivers and lakes, fish and other animals get sick or die from the pollution. You can learn more about protecting natural spaces through Parks and Conservation.

You and your community can make choices that help the environment. Planting native trees along streets provides shade, cleans the air, and gives birds and insects a home. Starting a composting programme turns food scraps into rich soil that helps plants grow without chemical fertilisers.

Recycling paper, plastic, and glass reduces the amount of waste sent to landfills and means fewer new resources need to be taken from nature. Treating wastewater properly before releasing it into lakes keeps water clean for fish and people. Taking the bus instead of driving reduces air pollution from vehicle exhaust.

Picking up litter during community clean-up events keeps parks safe for wildlife and people. Turning off lights and taps when you are not using them saves energy and water. These actions connect to ideas you explored in Caring for Our World and Protecting Our World.

Composting: Composting is when you collect food scraps and yard waste and let them break down naturally into rich soil. You can use this soil to help plants grow without needing chemical fertilisers.

Conservation: Conservation means protecting natural resources like Canada's forests and freshwater so they stay available for people, plants, and animals in the future.

Habitat: A habitat is the natural place where an animal lives, finds food, and raises its young. Examples include the boreal forest, the Arctic tundra, and wetlands like bogs and marshes.

Pollution: Pollution means harmful substances like chemicals, garbage, or exhaust gases that damage the air, water, or land around us. Pollution is usually caused by human activities and can harm plants, animals, and people.

Erosion: Erosion happens when wind, water, or ice gradually wears away land. It gets worse when trees are removed from hillsides and riverbanks because tree roots normally hold the soil in place.

Smog: Smog is a type of air pollution found in many cities. It forms when vehicle exhaust and industrial emissions react in sunlight, making the air unhealthy to breathe.

Clear-cutting: Clear-cutting is a logging practice where all the trees in a large area of forest are cut down at once. This destroys the homes of many animals and causes erosion.

Runoff: Runoff is when rain carries fertilisers, pesticides, and road salt from land into rivers and lakes. This can harm fish and other water animals.

Greenhouse gases: Greenhouse gases are released when people burn fossil fuels like coal, oil, and gas. These gases trap heat in the atmosphere and contribute to climate change, which affects Canada's Arctic, glaciers, and seasons.

Biodiversity: Biodiversity describes the rich variety of plants, animals, and other living things found in an ecosystem. Protecting biodiversity like the species in the Pacific Rainforest or the Great Lakes is key to a healthy environment.

Overfishing: Overfishing means catching so many fish that the fish population cannot grow back. Canada experienced this with the collapse of the Atlantic cod fishery in the 1990s.

Stewardship: Being a responsible steward means taking good care of the land, water, and living things around you. It means using resources carefully and protecting ecosystems for future generations.

Wetlands: Wetlands are areas like bogs and marshes where the ground is covered with water. They filter dirty water, prevent flooding, and provide homes for many types of wildlife including frogs, birds, and fish.

Permafrost: Permafrost is ground in Canada's North that has been frozen for thousands of years. When it thaws due to rising temperatures, the ground becomes unstable and releases stored greenhouse gases into the air.

You can take real action to protect your community's environment. Try turning off lights and computers when you leave a room, using a reusable water bottle instead of plastic ones, and picking up litter in your school yard or local park.

You can also learn from Indigenous peoples, including First Nations, Métis, and Inuit communities, who have protected the land for thousands of years. Their teachings remind us that the land provides food, medicine, and deep cultural connections and that we must care for it for future generations. Explore more ideas through Environmental Protection and Sustainable Development.

You have already learned important ideas that prepare you for this topic. From Using Earth's Resources and Sharing Earth's Resources, you know that natural resources must be used carefully. From Making Good Choices, you understand that your decisions have consequences for the world around you.

You also explored Environmental Consequences of Economic Activities and Small vs Large Communities Environmental Impact Analysis, which showed you how community size and economic choices affect the environment differently. Your learning about Individual Environmental Responsibility and Community Environmental Protection Values helps you understand both personal and group roles in protecting nature.

You also studied Recreational Environmental Impact Outdoor Activities and Ecosystem Effects, which showed how even fun activities can affect ecosystems when people are not careful.

This topic connects to many other important ideas in your learning journey. Communities and Their Environments helps you understand how the places where people live are shaped by and shape the natural world. Making Change shows you how communities can work together to improve environmental conditions.

As you move forward, you will explore Natural Resources to learn more about the materials we depend on from the Earth, and Ecosystems to understand how all living things are connected. You will also study Human Effects in greater depth, building on everything you have learned here about how people change the natural world.