Environmental Science Crash Course

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About Course

Environmental science means the study of how Earth works and how living things, including humans, affect it.

It is like learning how a giant home works: the air is one room, the water is another room, the soil is another room, and every plant, animal, river, city, farm, factory, and person is connected inside that home.

This course helps learners understand Earth as one connected system. A system means a group of parts that work together.

For example, your body is a system because your heart, lungs, brain, blood, and stomach all affect one another.

Earth is also a system because air, water, land, sunlight, plants, animals, and people all affect one another.

Today, the world’s biggest environmental problems are not separate problems. Climate change, loss of living species, pollution, waste, food production, energy use, and water stress are deeply connected.

The United Nations Environment Programme describes modern environmental work as needing changes in connected systems such as energy, food, waste, climate, biodiversity, and pollution.

Biodiversity means the many different kinds of life on Earth, such as plants, animals, fungi, and tiny living things.

This crash course is not shallow. It is written in very simple language, but it goes deep.

The aim is that a beginner can follow it easily, while still learning the real science behind Earth’s problems and solutions.

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What Will You Learn?

  • You will learn what the environment is, how Earth’s air, water, soil, rocks, living things, and energy work together.
  • You will learn how ecosystems work. An ecosystem means a place where living things and non-living things interact. A pond is an ecosystem because fish, algae, insects, water, sunlight, mud, and oxygen all affect one another.
  • You will learn why climate change happens. Climate means the usual weather pattern of a place over a long time. Climate change means those long-term patterns are changing.
  • You will learn what greenhouse gases are. A greenhouse gas is a gas in the air that traps heat, a little like a blanket traps body warmth.
  • You will learn why forests, oceans, rivers, wetlands, insects, soil life, and tiny organisms matter.
  • You will learn how pollution moves through air, water, soil, food, and bodies.
  • You will learn how humans use energy, food, minerals, land, and water.
  • You will learn what sustainability means. Sustainability means using Earth’s gifts in a way that does not damage the future.
  • You will learn how environmental laws, cities, farms, businesses, and everyday choices can reduce harm.
  • You will learn how to think like an environmental scientist: observe carefully, ask clear questions, measure evidence, connect causes and effects, and avoid simple answers when the real world is connected.

Course Content

Basics of Environment

Human Impacts on Environment

Effects on Environment

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