You may not have noticed it, but in news that feels cosmically reflective of life on Earth recently, the moon began to wobble this year — a natural phenomenon that occurs every 18.6 years. While it won’t cause the sky to fall, it will influence our seas, with global tides suppressed in the near-term but amplified in the second half of the cycle. That’s got some watchers concerned about rising sea levels, but it also presents an interesting dynamic to one developing but often overlooked renewable energy source: our planet’s oceans. “Wave energy” proponents believe ocean-focused technologies can someday complement wind and solar, while also being more reliable. In today’s RBN blog, we examine what wave energy is and how it’s produced, the potential pros and cons compared with other renewables, and what type of projects are being developed.