Elon Musk, frustrated by LA’s heavy traffic, has proposed to create tunnels for an underground transportation system. And his newly established Boring Company, is exploring ways to cut down tunneling costs, in order to make his plan feasible.
Rain-induced landslides have hit a death toll of nearly 20,000 since 2007. For an overview of the landslides' locations NASA has updated the open source Global Landslide Catalog. The video released by NASA reveals very useful information on the statistics of landslides.