Okay, so subsidence is a BIG problem... What should we do?In this week’s video, Michele discusses how residents of the Coachella Valley effectively mitigated subsidence in their area, thus preserving the ability to store water underground. Based on that experience, which of the following actions will likely best mitigate subsidence in the SF bay delta:

a. Inject carbon dioxide to great depths in the Central Valley in order to force open the closed pores between sediment grains.
b. Increase precipitation due to climate change, which will fill our current reservoirs.
c. Seed rain clouds so that additional rain falls in the Sierra Nevada and contributes to expected flow in the springtime.
d. Promote natural regular flooding of rivers that flow in through the Central Valley, so that water can infiltrate and recharge groundwater reserves.