San Francisco and Oakland filed a lawsuit this week demanding ExxonMobil, Chevron, BP, ConocoPhillips and Royal Dutch Shell pay billions to cover the costs of sea walls and other protections against rising sea levels.
Mexico and California have different risk factors for earthquakes, says Caltech's Jean-Paul Ampuero. They share a common need for community-led earthquake preparedness tailored to the risks of the region.
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