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The earth's power can exact a terrible price. This decade, a series of disasters have destroyed communities and countries. With natural resources running low and public concern at an all time high, alternative energy sources are being sought and questions asked: Can the sometimes-destructed-elemental-forces thrown out by embattled earth also provide its salvation? Can harnessing the earth's power provide a long-term solution to its ills? Over the next two months, we'll be looking at the earth's natural resources and asking what is the cost of the clean energy.

Hello, I'm Anna Coren, welcome to Earth's Frontiers. In this episode, we'll be looking at alternative energy from the tried and tested green power to the more inconsistent solar power. But first we head to Hawaii, and an ambitious plan to harness the power of the waves.

For decades, surfers have made the pilgrimage to Hawaii, paying homage to its golden beaches and bowing before its world-class waves. Maybe though, these waves are attracting new disciples.

"Both a surfer and an OTP engineer are looking for a wave with a lot of energy to them."

Charles Dunleavy is CEO of Ocean Power Technologies. He and his engineers are looking to revolutionize the renewable energy industry.

"It's one of the great advantages of wave energy. That is close to the shore. And as you look around the world, the majority of the world's population is very close to shore."

On the shores of Kaneohe Bay, Hawaii, Dunleavy's company has found a powerful ally, in the US military.

"A lot of navy and Marine Corps bases are located on the water and ocean energy is there all the time."

Colonel Robert Rice is commanding officer of the Marine Corps Base Hawaii. By the first glance, the Colonel and Dunleavy may appear to have little more in common from the colour of their life preservers. But both are energized by what lies ahead of them out in the open ocean.