Big technology like renewable energy, carbon sequestration and advances in aquaculture certainly have a major role in restoring the ocean and the planet to a healthy balance, but in many cases it's a matter of giving nature the space and time to do what it needs to do with a helping hand from all of us.

CNN: Oceans: Environmental victim or savior?

He gave up a six-figure salary as a marketing consultant and dedicated his life to restoring the world's ocean reef ecosystems.

CNN: Heroes: Reef restoration provides passion for diver