Cleaning the environment

Making the environment dirty

Planting more trees

Using clean energy

Oxygen

Nitrogen

Carbon dioxide

Hydrogen

To throw away trash

To use something again

To burn plastic

To make new products from old ones

Gases that help plants grow

Gases that trap heat in the Earth’s atmosphere

Gases that cool the planet

Gases used in refrigerators

Cutting down trees

Planting trees

Saving the forest

Building houses

Coal and oil

Solar, wind, and water

Gasoline

Burning wood

A change in weather for one day

Long-term changes in weather patterns

Cold winters only

Hot summers only

Energy from the sun

Oil, coal, and natural gas

Clean energy

Wind energy

Large areas of ice at the North and South Poles

Ice cubes in the freezer

Frozen lakes in the mountains

Cold clouds in the sky

Planting new trees

Removing all trees

Building roads in forests

Cutting down trees for wood

Using resources wisely so they last longer

Using as much as possible now

Wasting resources

Only using non-renewable energy

The sea gets colder

The sea becomes deeper

The sea stays the same

The sea gets lower

The amount of carbon we save

The amount of carbon dioxide we produce

The amount of carbon in the air

The amount of trees in a forest

To use less energy

To waste energy

To create more energy

To store energy in batteries