Enduring Understandings: Humans can have a profound impact on their
local environments (HS-LS2-6), Human impact is a global phenomenon (HS-LS4-
6), People have been significantly impacting the environment for many generations (HS-LS4-6), Over time, enough human impacts will affect climate and weather patterns (HS-ESS3-6), Human impacts can be measured, charted, and
tracked (HS-ESS3-4), Ecosystems provide free services that people depend on. These services have value which can be measured. (HS