OCEANS
Why the sea rises and falls
The Moon sets a rhythm, the Sun changes its strength, and every coastline gives the tide a different response.
THE JOURNAL
Questions worth following.
Find a story. Take the next turn.
2 stories
OCEANS
Why seawater is salty—and rivers mostly are not
The sea keeps a chemical record of rain on rocks, water returning to the sky and reactions beneath the ocean floor.