Natural hazards

major adverse event resulting from natural processes of the Earth, which may cause loss of life or property

thumb|upright=1.36|The Gulf of Corryvreckan whirlpool in Scotland is the third-largest whirlpool in the world. A whirlpool is a body of rotating water produced by opposing currents or a current running into an obstacle. Miniature whirlpools form when a bath or a sink is draining. More powerful ones formed in seas or oceans may be called maelstroms ( ). Vortex is the proper term for a whirlpool that has a downdraft.

zonally-integrated component of surface and deep currents in the Atlantic Ocean

predicted dates of the end of the world

risk resulting from climate change and affecting natural and human systems and regions