Company’s Carbon Credits Raise Questions About Unproven Ocean Technology to Fight Global Warming
- Gigablue, an Israeli startup founded three years ago, sold 200,000 ocean-based carbon credits this year to fund its carbon removal technology.
- Last year, the company initiated experimental particle release trials in the South Pacific and has scheduled another research trip to New Zealand.
- Gigablue designs particles embedded with iron to stimulate carbon capture by sinking algae but denies causing uncontrolled algae blooms or iron dumping.
- Scientists express serious doubts about Gigablue's unproven technology and its link to controversial iron fertilization practices, while buyers remain unconcerned.
- Authorities’ regulatory views and permission for expanded sequestration fields in New Zealand remain uncertain, affecting the company's future commercial activities.
40 Articles
40 Articles

An Israeli startup says its new technology will save the planet. Scientists have doubts
A startup called Gigablue claims to have reached a milestone by selling 200,000 carbon credits for its ocean-based carbon capture technology. The company says its patented particles grow algae that trap carbon dioxide, which then sinks to the ocean floor.…
Ocean technology startup that sold 200,000 carbon credits faces scientists’ doubts: 'Trust us, it sinks'
The startup Gigablue announced with fanfare this year that it reached a historic milestone: selling 200,000 carbon credits to fund what it describes as a groundbreaking technology in the fight against climate change. Formed three years ago by a group of entrepreneurs in Israel, the company says it has designed particles that when released in the ocean will trap carbon at the bottom of the sea. By “harnessing the power of nature,” Gigablue says, …

Company's carbon credits raise questions about unproven ocean technology to fight global warming
A startup called Gigablue claims to have reached a milestone by selling 200,000 carbon credits for its ocean-based carbon capture technology.
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