Test Review:

What causes global warming?
• Green house effect
• Cfc's, co2, nitrous oxide, methane, and other harmful gases build up in the atmosphere, creating a blanket surrounding the earth.
• Deforestation

What are the effects?
• Ice caps melting leading to sea levels rising.
• Ocean warming, causing more intense storms.
• Animals in danger
• Increased carbon footprint

What's the argument?
• Is global warming a process of natural climate change, or something that can be prevented?
• How big of a problem is this?
• What should be done to stop it?