The more electricity people use, the more power plants have to produce. That means more air pollution.
Science Background
Sunlight heats Earth’s surface. Some heat goes out into space, but most stays close to Earth. Gases, including carbon dioxide, soak up the heat. As more gases are released into the air, they keep more and more heat close to Earth. Earth becomes warmer than usual.
Before You Move On
1.Cause and Effect How does wasted light cause light pollution?
2.Evaluating Sources Do you agree with David Crawford that lights should point at the ground and not at the sky? Why or why not?
