Microsoft and Ebb Carbon inked the largest marine carbon dioxide removal (mCDR) deal to-date. Carbon removal credits will be verified using Isometric's Ocean Alkalinity Enhancement Protocol.

Ebb Carbon is advancing toward selling carbon removal to the U.S. government. This milestone highlights Ebb Carbon's technology as a high quality, cost-effective solution in the fight against climate change.

The nonprofit foundation Xprize announced the short list of carbon removal finalists, including Ebb Carbon. The grand prize winner, to be announced in April 2025, will take home $50 million, while the runners-up will split a $30 million pot.

With the flip of a switch at the Pacific Northwest National Laboratory’s seaside facility in Sequim, Washington, a tangle of pipes and filters whirrs into action, scrubbing acid from the cool gray waters of the Salish Sea. It’s the pilot project of Ebb Carbon, one of several companies building a business on ocean carbon removal technology.

That’s exactly what Ben Tarbell, Co-Founder and CEO of Ebb Carbon, is doing. I spoke to Ben about his journey, from his childhood spent obsessed with building and engineering, to his career in solar, to prototyping the Ebb system in a bathroom-less empty warehouse, to opening Ebb’s first site and starting to meaningfully remove carbon via the ocean.

The ocean can suck up a lot of carbon (good!) but that process makes the water dangerously acidic (bad!). Ebb Carbon has found a way to put more carbon in, while lowering the acidity levels at the same time.

Removing carbon from the atmosphere is a growing field of business in the fight against global warming, but it’s not just big air vacuums doing the work. New technology is targeting an even bigger potential resource: the ocean.

At a waterfront lab in Sequim Bay, a quiet inlet on Washington’s Olympic Peninsula, the startup Ebb Carbon is trying to answer a crucial question for the climate: Can we supercharge the ocean’s role as a carbon sink to help limit global warming?

In this one hour CNN documentary that aired on Anderson Cooper's "The Whole Story," CNN visits Ebb's headquarters and other climate capture companies, and finds optimism in the face of global catastrophe.

CNN's Chief Climate correspondent, Bill Weir, pens this heartfelt Earth Day letter to his 4-year old son River about why Ebb Carbon and its peers give him hope for the future.

An ocean-based carbon removal company founded by former Tesla, SolarCity, and Google X employees has just secured $20 million in Series A financing. (Subscription required)

Why it's poised to take off: Ebb Carbon has built a system that fits into a shipping container, says Ed Phillips of Future Planet Capital. Ebb Carbon's system "can reach gigaton scale at sub-$100 a ton of CO₂ captured" while also using less energy than other methods, Phillips added.