America's environmental report card: are we making the grade?

Water: is there enough and is it drinkable?

Floods: too much water

Garbage: the smelly mountain

Soil, crops, and food

Energy supplies

Global warming: the climate is changing

Air pollution and your lungs

Skin cancer and the ozone hole

Nuclear-waste disposal: not in my backyard.

Water: no cholesterol, fat free, zero sugar

Infrastructure: pipes, wires, roads, bridges, railroads, dams, airports, and levees

Floods: when the levees break

Garbage: trash talk

Soil, crops, and food: dirt and nutrition

Fossil fuels: energy from the past

Alternative energy sources: energy for the future

The nuclear energy controversy: radiation for everyone

Climate change: what have we done?

Air pollution: lung disease

Conclusion: is there hope?

Water : is there enough and is it drinkable?

Floods : too much water

Garbage : the smelly mountain

Soil, crops, and food

Energy supplies

Global warming : the climate is changing

Air pollution and your lungs

Skin cancer and the ozone hole

Nuclear-waste disposal : not in my backyard.