Impacts of atoms move oceans.
Even though each water molecule prefers sticking with its neighbors,
they are easily churned and pushed by the wind
while they are pulled toward the center of the earth
and around the planet toward the moon.
Effects of temperature are huge;
air temperature differences move gases
from high to low pressure areas,
and similar differences move liquids
around the continents
between polar and equatorial areas.
See also in The book of science:
Readings in wikipedia: