Claims checked › Claim
Holistic grazing reverses desertification and climate change
“Managing livestock holistically can reverse desertification and draw enough carbon into grassland soils to return the atmosphere to pre-industrial levels within decades.”
The claim comes from the method's founder and a 2013 talk seen by millions. Rangeland scientists found its major assertions unsupported by the evidence and often in conflict with it. The carbon figure it implies is about seven times the measured average for improved grazing, and the largest meta-analysis found no production difference at all.
Where it comes from
Allan Savory's 2013 TED talk, "How to fight desertification and reverse climate change", and the Holistic Management method he developed. The talk's figures are the founder's own; the Savory Institute's evidence page cites 11 studies.
Who benefits
The Savory Institute and the network of certified consultants and courses built around the method. That is a legitimate business; the climate claim is what needs checking.
What the evidence says
The scientists who study grazing disagreed in print. A group of rangeland ecologists led by David Briske responded that the talk's claims "are not only unsupported by scientific information, but they are often in direct conflict with it", and a review of the Patagonian success stories found "no credible data" for them (Sierra, 2017).
The evidence list is half surveys. An independent 2016 review examined the 11 studies the Institute cites: five are interviews or surveys and six quantitative; "no review study has established that holistic grazing is superior to conventional or continuous grazing" (Nordborg 2016, via TABLE).
The carbon number is out by about seven times. The talk's arithmetic implies about 2.5 t of carbon per hectare a year across vast areas. Improved grazing management stores on average about 0.35 t per hectare a year, and soils approach a new equilibrium within decades, after which storage slows (same review).
The largest meta-analysis found nothing. Weighted across studies, Holistic Planned Grazing showed no difference from continuous grazing in plant basal cover, plant biomass or animal gain (Hawkins 2017, African Journal of Range & Forage Science). A 2026 study of Northern Great Plains ranches found adaptively grazed land with 45% less soil nitrogen and 11% less soil organic carbon than conventional neighbours (as reported).
What to say instead
"Well-run rotational grazing raises utilisation on improved pasture and can improve soil water and carbon in the Mediterranean; nothing shows the holistic brand does more, and grazing cannot reverse climate change." The measured Portuguese gains and their caveats are on the rotational grazing page.