A student makes the following table in a science notebook.

Energy Resource. Coal Oil. Natural Gas
Airborne toxin. X. X. X
Water Pollution. X. X. X
Global Warming. X. X. X

What would be the best title for the table?
The Greenhouse effect
Effects of burning Fossil Fuels
Causes of Acid rain
Effects or Radioactive Waste

Effects of burning Fossil Fuels