Cut the methane cattle burp out, cheaply and at scale. Ruminant methane is about 30% of human-caused methane; a seaweed fed in tiny doses can suppress most of it if enough can be grown cheaply.
EcoPark phase one (10 ponds, 80 t a year) running since Jan 2025; expansion to 100 ponds pending.
Updated 15 Sep 2025Checked 11 Oct0 updates this week
Asparagopsis grows in in-ground saltwater ponds under poly tunnels, which hold the day's warmth overnight; sunlight replaces lamps.
Harvested seaweed is dried and made into Methane Tamer; batches that miss the standard are composted.
Feedlots mix it in at about 0.5% of the daily feed, so a small amount of seaweed treats many animals.
Treated cattle burp out far less methane; butchers selling the beef report no difference in taste.
| Spec | Methane Tamer & Louth Bay EcoPark |
|---|---|
| Ponds (phase one) | 10R (reported) |
| Pond volume (phase one) | 2 million litresR (reported) |
| Seaweed output | 80+ t a yearR (reported) |
| Dose | ~0.5% of daily rationR (reported) |
| Methane reduction (claimed) | Up to 90%; 70% minimum guaranteedR (reported) |
| Cattle served at 100 ponds | 45,000 a day (target)R (reported) |
R reported by the company
CH4 Global
Asparagopsis seaweed feed to cut cattle methane
Grows Asparagopsis, a red seaweed that suppresses methane made in a cow's gut, in ponds in South Australia, and sells it as Methane Tamer, a feed supplement for feedlot cattle.
