Effects of Global Warming

While most models show that global warming is occurring, and will continue, it is difficult for scientists to predict to what extent as well as to predict the effects. Evidence shows these as possible effects:

• Rising sea levels due to melting polar ice caps.
• Increasing frequency and severity of storms and hurricanes.
• More frequent heat waves and droughts.
• Relocation of major crop-growing areas.

Activity: Now you get to practice thinking like a scientist! As stated above, the precise causes and effects of global warming or climate change still puzzle scientists. Due to this uncertainty, some governments are choosing to reduce emissions of greenhouse gases, while some are resisting action to reduce emissions. What do you think are the benefits of reducing greenhouse gas emissions? What do you think are some risks of not reducing such emissions? Please post your ideas in the "Comments" section.

Reference

Spaulding, N.E. & Namowitz, S.N. (2005). Earth science. Evanston, IL: McDougal Littell.