Earth has warmed and cooled time and again as the planet received more or less sunlight, as the atmosphere or surface changed, or as the Sun’s energy varied. But in the past century, another force has started to influence Earth’s climate: humanity. (Riebeek, 2010)

Review the National Climate Assessment and The Effects of Climate Change resources.

  • Describe an example of the effect of climate change where you live (for example, rising sea levels, erosion, species decline, severe weather events, and so forth).
  • Discuss 1 approach to reducing greenhouse gas emissions, which are believed to have a large impact on climate change.


Groffman, P. M., Kareiva, P., Carter, S., Grimm, N. B., Lawler, J., Mack, M., Matzek, V., & Tallis, H. (2014). National climate assessment: Ecosystems, biodiversity, and ecosystem services. National Climate Assessment.

NASA Global Climate Change. (2021). The effects of climate change

Riebeek, H. (2010, June 3). Global warming. Earth Observatory.

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