Final answer:
Potential drawbacks of desalination in California include high cost and environmental impacts from saline wastewater.
Step-by-step explanation:
Desalination, the process of removing salt from seawater, has some potential drawbacks in California. One drawback is the high cost associated with desalination. It requires considerable energy input, making the water produced much more expensive than fresh water from conventional sources. Another drawback is the creation of highly saline wastewater, which must be disposed of and can have significant environmental impacts.