Without healthy oceans, our life on Earth would be severely challenged, unpleasant and perhaps impossible. The oceans are the life support system of all living beings. That's because life on Earth can thrive without land, but it cannot exist without an ocean.

What would happen without the ocean?

Without clouds forming over the ocean, rain would be incredibly rare, and the planet would become desert. We'd watch our lakes and water supplies dwindle a little more every year until nothing was left. Humans might survive for a while near our homes.

What will happen if the oceans die?

Paul Watson: The reality is that if the ocean dies, we die – because the ocean provides all of those things which make it possible for us to live on the planet. ... If phytoplankton disappear, we disappear also, we can't live on this planet without phytoplankton.