Home/Australasia/StartupsArticle
Startups

Australian Climate Tech Startup Develops Ocean-Based Carbon Capture Technology

Sydney-based OceanCO2 secures $25M to deploy ocean-based carbon removal technology that could sequester millions of tons annually.

James Mitchell
By James Mitchell · BRIC.TV
Published Apr 8, 2026 · 4 min read · 1340 views
Australian Climate Tech Startup Develops Ocean-Based Carbon Capture Technology

Key Takeaways

  • OceanCO2 raises $25M for ocean-based carbon capture
  • Technology costs 70% less than direct air capture
  • Pilot projects successfully removed 10,000 tons of CO2
  • Reduces ocean acidification while capturing carbon

OceanCO2, a Sydney-based climate tech startup, has successfully demonstrated a breakthrough ocean-based carbon capture method and secured $25 million in funding to scale operations. The technology enhances the ocean's natural ability to absorb CO2 through controlled alkalinity enhancement.

Scientific Approach

The company disperses carefully measured alkaline materials in specific ocean locations, increasing the water's capacity to absorb atmospheric CO2. This process mimics and accelerates natural weathering processes that have regulated Earth's climate for millions of years.

Technology Advantages

  • Captures and permanently stores CO2 for 10,000+ years
  • Costs 70% less than direct air capture technologies
  • Improves ocean health by reducing acidification
  • Scalable to gigatonne-level carbon removal

Pilot Results

Initial pilot projects off Australia's coast have successfully removed 10,000 tons of CO2 while showing positive effects on marine ecosystems. The company has signed agreements with major corporations seeking high-quality carbon removal credits.

"We're not just tackling climate change; we're restoring ocean health in the process," said Dr. Emily Carter, founder and Chief Scientist. "This is a true climate solution with multiple environmental benefits."

Related Articles

Indian startups raise $176.5 million, down 16% in week ending Sept 4

Indian startups raise $176.5 million, down 16% in week ending Sept 4

upGrad bought Unacademy for just over $200 million, a steep drop from its 2021 valuation. ESDS Software Solution's stock soared 111.7% on debut, and Yotta Data Services plans a $1.5 billion IPO by October.

Daniel Brown

Sep 6, 202690 views
Tamil Nadu companies embrace IPOs as Milky Mist and Lalithaa Jewellery succeed

Tamil Nadu companies embrace IPOs as Milky Mist and Lalithaa Jewellery succeed

Tamil Nadu companies like Garuda Aerospace and Sathya Agencies are planning IPOs, joining others such as Milky Mist and Lalithaa Jewellery. This marks a shift in family businesses' approach, seeking public investment for growth and to resolve internal conflicts.

Shagun Pandey

Aug 30, 202652 views
Unitree Robotics' IPO Highlights Surge in Chinese AI Investments

Unitree Robotics' IPO Highlights Surge in Chinese AI Investments

Unitree Robotics' IPO on the Shanghai STAR market raised $900 million, with shares soaring 630% on the first day. The event underscores the growing interest in Chinese AI and robotics sectors.

Utkarsh Aggrawal

Aug 26, 2026102 views
Rishad Premji leads jury selection for ET Startup Awards 2026

Rishad Premji leads jury selection for ET Startup Awards 2026

ET Startup Awards 2026 jury announced, featuring Rishad Premji of Wipro and Vijay Shekhar Sharma of Paytm. This panel, full of industry leaders, will assess innovative startups, highlighting India's dynamic entrepreneurial scene.

Ramesh Gupta

Aug 17, 2026209 views
Mumbai woman Jyoti Wakchaure starts digital business after relocating to Sweden

Mumbai woman Jyoti Wakchaure starts digital business after relocating to Sweden

Jyoti Wakchaure, from Mumbai, turned a job loss in Gothenburg, Sweden, into a thriving digital marketing agency. Now earning ₹1 lakh monthly, she balances her business with investments in India and Sweden, exemplifying immigrant resilience and adaptability.

Rahul Sharma

Aug 15, 2026245 views
Gaja Alternative Asset Management sets IPO price band at Rs 152-160, opens August 19, 2026

Gaja Alternative Asset Management sets IPO price band at Rs 152-160, opens August 19, 2026

Gaja Alternative Asset Management's IPO opens August 19, 2026, aiming for Rs 550 crore. Price band: Rs 152-160. Reflects investor confidence in India's economy and Gaja's goal to be first listed standalone private equity firm in India.

Rahul Sharma

Aug 14, 2026385 views