The Draft EIR identified four impacts that are considered to be significant and unavoidable. These impacts are: (1) operational increases in Greenhouse Gas emissions in 2030; (2) loss of Airport Creek wildlife movement corridor for large mammals; (3) short-term construction noise impacts; and (4) U.S. 101 freeway operation for 2030. All other impacts identified in the Draft EIR can be mitigated to a less-than-significant level.