The Agricultural Solution to the Greenhouse Effect by Allan Yeomans (1990)

In 1990, Allan was invited to the Esalen Congress on Sustainable Agriculture, where he presented this paper entitled “The Agricultural Solution to the Greenhouse Effect”. This is the genesis of his work on the Yeomans Carbon Still and the associated methodology for measuring soil carbon sequestration. You can download the paper as a pdf document […]

Many Questions about Soil and the Carbon Economy

Listing some of the things I don’t yet understand about soil and the carbon economy: What happens to carbon when plants photosynthesize? I mean, I (sort of) get it, that they “breathe in” CO2, but then what? I’ve been imagining that they break the CO2 into oxygen (O2) and carbon (C) (how exactly?)- the oxygen […]


Morgan Way and Sam Doyon from Wayward Films produced this short video documentary about the Yeomans Carbon Still, soil carbon and its potential for mitigating global warming. The video includes discussion with inventor/designer Allan Yeomans, artist Lucas Ihlein, farmer Robert Quirk, Indigenous land manager Russell Logan, and carbon farming advocate Louisa Kiely. The doco is […]

A Field Trip to Niels Olsen’s Farm

I took Allan Yeomans to visit Niels’ farm, about 1.5 hours south east of Melbourne. Niels raises cattle and grows many different species creating a “salad bowl” of living plants for his cows – including peas, oats, rye corn, chicory, plaintain, tillage radish, vetch, and clover. Like Allan Yeomans, Niels is an inventor. In the […]

Baking Earth: Soil and the Carbon Economy

I’ve come from Wollongong to visit Allan Yeomans, the inventor of the Yeomans Carbon Still. It seems fitting that Allan’s workshop is located here at the Gold Coast, where hundreds of skyscrapers cluster along the beach, perched barely above sea level. What will happen to this place in the near future, when sea levels rise […]