What causes ocean waves? : Ocean Exploration Facts: NOAA Ocean Exploration

Waves are caused by energy passing through the water, causing the water to move in a circular motion.

Ocean Noise NOAA Fisheries

NOAA Ocean Exploration

Climate Change: Global Sea Level

What causes ocean waves? - Woods Hole Oceanographic Institution

What Is Sonar? - American Oceans

Currents, Waves, and Tides

If marine noise pollution is bad, deep-sea mining could add to the cacophony

Global Climate Change Explorer: Oceans and Water

What causes ocean waves? - Woods Hole Oceanographic Institution