THE PROBLEM

CAUSES/ effects

• -85% of world’s energy needs met through oil, coal & natural gas
• -more people = more cars/electricity = less resources
• greenhouse gases =climate change
• nuclear =environmental/hazardous waste
• ethanol = smog & ozone depletion

causes/ effects cont.

• coal= water & air pollution
• petroleum = oil spills

solutions

• increase energy efficency
• conservation
• invest in renewable energy such as wind, solar and hydropower.