environmental science is the study of how humans interact with the environment

Environmental science is The study of how humans

Interact with the environment.

The major focus of environmentalScience is to solve environmental

Problems that WE created!

The term environment refers To everything that

Surrounds us.

News reports area heard dailyThat sound the alarm of

Health risks from chemicals In the soil, water, and even in

The food that we eat.

Every informed citizen thinks About the changes in our

Environment.

Solving these problems can Become very complicated

And expensive.

This can be done though, The drinking water from

Lake Erie and the CuyahogaRiver are much better than

Even a few years ago.

Although there seems to be An unlimited number of

Environmental problems, They all fall into 3 categories…

Resource depletionPollution

And Extinction

Natural resources can be Considered as any natural

Substance that living things use.

Such as…Sunlight, air, water, Minerals, plants, and

Fossil fuels.

A nonrenewable resource is Any resource that cannot

Be replaced.

A renewable resource is Just the opposite, those that

Are replaced.

Pollution is the introductionOf harmful levels of

Chemicals or waste materialInto the environment.

Scientists estimate that Thousands of species are

Becoming extinct every year.

Many environmental problems Are global problems.

Such as pollution released fromCoal power plants causes

Acid rain that falls everywhere.

The biosphere is the thin layerOf life that exists around

The Earth.

It is roughly 8 km above andBelow the Earth’s surface.

No matter what country People live in, they are in

The biosphere.

A developed country is Highly industrialized and

Have high incomes.

Developing countries are lessIndustrialized and their citizens

Have much lower income, Like India - $2700 a year.

Many environmental problems Are linked to increasing

Human populations.

This leads to a population crisisAnd a consumption crisis.

The major goal of modern Environmental science is toMove toward a sustainable

World.

A sustainable world is a world In which humans can continue

To exist indefinitely with a highStandard of living and health.

There are 2 basic types Of science…

Pure sciences And

Applied sciences

A pure science seeks to Answer questions about how

The natural world works.

An applied science usesInformation to solve problems.

Biology - Physics - Chemistry

Environmental – engineering

One of the most important Foundations of environmental

Science is ecology.

Ecologists study how living Things interact with each other

and their surroundings

When making environmental Decisions, many things Need to be considered.

Economics, religious, scientific…