Topics

Frontier buys $31M worth of antacids for the ocean

Tech and VC heavyweights join the Disrupt 2025 agenda

Netflix, ElevenLabs, Wayve, Sequoia Capital, Elad Gil — just a few of the heavy hitters joining the Disrupt 2025 agenda. They’re here to deliver the insights that fuel startup growth and sharpen your edge. Don’t miss the 20th anniversary of TechCrunch Disrupt, and a chance to learn from the top voices in tech — grab your ticket now and save up to $600+ before prices rise.

Tech and VC heavyweights join the Disrupt 2025 agenda

Netflix, ElevenLabs, Wayve, Sequoia Capital — just a few of the heavy hitters joining the Disrupt 2025 agenda. They’re here to deliver the insights that fuel startup growth and sharpen your edge. Don’t miss the 20th anniversary of TechCrunch Disrupt, and a chance to learn from the top voices in tech — grab your ticket now and save up to $675 before prices rise.

Most Popular

Coinbase CEO explains why he fired engineers who didn’t try AI immediately

OpenAI lawyers question Meta’s role in Elon Musk’s $97B takeover bid

YouTube Music celebrates 10 years with new features that help it compete with Spotify

Hackers who exposed North Korean government hacker explain why they did it

Google, sorry, but that Pixel event was a cringefest

Harvard dropouts to launch ‘always on’ AI smart glasses that listen and record every conversation

Google launches a new Pixel Journal app

Latest

Amazon

Apps

Biotech & Health

Climate

Cloud Computing

Commerce

Crypto

Enterprise

EVs

Fintech

Fundraising

Gadgets

Gaming

Google

Government & Policy

Hardware

Instagram

Layoffs

Media & Entertainment

Meta

Microsoft

Privacy

Robotics

Security

Social

Space

Startups

TikTok

Transportation

Venture

Events

Startup Battlefield

StrictlyVC

Newsletters

Podcasts

Videos

Partner Content

TechCrunch Brand Studio

Crunchboard

Frontier buys $31M worth of antacids for the ocean Tim De Chant AM PDT · August 26, 2025 Frontier, the carbon removal clearinghouse founded

Where most Frontier deals to date have bought carbon from startups specializing in direct air capture, enhanced weathering, or bioenergy with carbon capture, the organization’s agreement with Planetary is its first to do so

The deal effectively prices each metric ton of carbon at $270, though Planetary says it has a plan to eventually remove carbon for less than $100 per metric ton. At full tilt, ocean alkalinity enhancement could remove over 1 billion metric tons of carbon dioxide annually.

For decades, the oceans have been dampening the effects of climate change

The world’s oceans are naturally a little bit alkaline. Historically, they had a pH of 8.2, but since the industrial revolution began, it has fallen to 8.1. That might not sound like much, but pH’s logarithmic scale means the oceans are now 30% more acidic than in the early 1800s. When carbon dioxide reacts with water, it forms carbonic acid.

Planetary currently uses magnesium hydroxide to boost alkalinity, the same substance used in over-the-counter antacids. The company adds it at wastewater treatment facilities and power plants, sites that are already discharging water into the ocean. That helps minimize disruption to the coasts, and it helps Planetary keep costs down.

The startup currently has two projects, one in Nova Scotia and the other in Virginia.

Techcrunch event Tech and VC heavyweights join the Disrupt 2025 agenda Netflix, ElevenLabs, Wayve, Sequoia Capital, Elad Gil — just a few of the heavy hitters joining the Disrupt 2025 agenda. They’re here to deliver the insights that fuel startup growth and sharpen your edge. Don’t miss the 20th anniversary of TechCrunch Disrupt, and a chance to learn from the top voices in tech — grab your ticket now and save up to $600+ before prices rise. Tech and VC heavyweights join the Disrupt 2025 agenda Netflix, ElevenLabs, Wayve, Sequoia Capital — just a few of the heavy hitters joining the Disrupt 2025 agenda. They’re here to deliver the insights that fuel startup growth and sharpen your edge. Don’t miss the 20th anniversary of TechCrunch Disrupt, and a chance to learn from the top voices in tech — grab your ticket now and save up to $675 before prices rise. San Francisco | October 27-29, 2025 REGISTER NOW Topics

Tim De Chant Senior

Tim De Chant is a senior climate

De Chant is also a lecturer in MIT’s Graduate Program in Science Writing, and he was awarded a Knight Science Journalism Fellowship at MIT in 2018, during which time he studied climate technologies and explored new business models for journalism. He received his PhD in environmental science, policy, and management from the University of California, Berkeley, and his BA degree in environmental studies, English, and biology from St. Olaf College.

You can contact or verify outreach from Tim

October 27-29, 2025 San Francisco Put your brand in front of 10,000+ tech and VC leaders across all three days of Disrupt 2025. Amplify your reach, spark real connections, and lead the innovation charge. Secure your exhibit space before your competitor does.

Most Popular Coinbase CEO explains why he fired engineers who didn’t try AI immediately Julie Bort

OpenAI lawyers question Meta’s role in Elon Musk’s $97B takeover bid Maxwell Zeff

YouTube Music celebrates 10 years with new features that help it compete with Spotify Sarah Perez

Hackers who exposed North Korean government hacker explain why they did it Lorenzo Franceschi-Bicchierai

Google, sorry, but that Pixel event was a cringefest Sarah Perez

Harvard dropouts to launch ‘always on’ AI smart glasses that listen and record every conversation Lorenzo Franceschi-Bicchierai Rebecca Bellan

Google launches a new Pixel Journal app Ivan Mehta

X LinkedIn Facebook Instagram youTube Mastodon Threads Bluesky TechCrunchStaffContact UsAdvertiseCrunchboard JobsSite Map Terms of ServicePrivacy PolicyRSS Terms of UseCode of Conduct Pixel 10Made © 2025 TechCrunch Media LLC.