The work to make agriculture more sustainable, humane, and efficient is complex. It requires considering some of our most profound problems, including climate change and an increasing human population. During the last decade, regenerative agriculture has received a lot of attention as a form of farming that promises environmental benefits compared to industrial farming systems. While regenerative agriculture can improve soil quality and soil microbiome, it is far from being a silver bullet for climate change—and has its own drawbacks.
Regenerative agriculture is best thought of as a system of related agricultural practices, rather than a single method. There is no formal, scientific, or regulated definition of the term.
While the World Economic Forum defines regenerative agriculture as “a way of farming that focuses on soil health,” a review of 25 practitioner websites and 229 journal articles found definitions ranging from “a system of farming principles and practices that increases biodiversity, enriches soils, improves watersheds, and enhances ecosystem services,” to “a long-term, holistic design that attempts to grow as much food using as few resources as possible in a way that revitalizes the soil rather than depleting it, while offering a solution to carbon sequestration,” to “a form of enterprise that incorporates a community of people engaged in civil labor to produce and consume the food (and land, landscape and amenity) that they, collectively, decide to grow.”
In our 2020 report on regenerative agriculture, we pointed out that regenerative agriculture was not a monolith but spanned groups concerned primarily with conservation agriculture and others with a more holistic view incorporating ecological farming, animal welfare, and labor rights.
Many practices of regenerative agriculture are not new. Indigenous communities have employed a number of them for centuries. While the science of regenerative farming was studied during the twentieth century, it exploded in popularity after a 2013 TED talk by Allan Savory went viral. In the talk, Savory specifically pointed to cattle systems as a regenerative boon, arguing in part that humans should eat more meat to improve the environment. The talk’s major claims have been described as “unfounded” by scientists and heavily criticized by the Sierra Club. Nonetheless, regenerative agriculture remains a compelling concept and a buzzword for many, selling books and headlining conferences.
Unfortunately, the massive hype behind the farming practice, along with the absence of clear definitions or meaningful regulation, has led to greenwashing and deceptive marketing from some food companies and farms. Not all regenerative farms are alike, however, because not all regenerative practices are alike.
Regenerative agriculture’s varied forms are not clearly defined. Some types of regenerative agriculture can be entirely arable (crop-based), but in general most regenerative practices involve raising animals—especially ruminant animals like cows—in a semi-pastoral system that integrates grazing and reduced tilling to maintain soil fertility.
It’s common to sort the principles of regenerative agriculture into a few main points, and these lists can reflect very different priorities, though they agree on many of the basics.
Ecosystems require balance, and a key part of that balance is the relationship between plant and animal species (though not necessarily farmed animals). When domesticated farmed animals are allowed to roam within a farm, they can benefit the farm by interacting with plant species, for example by spreading seeds through their manure, which also serves as fertilizer. Animals raised in these conditions may have significantly higher animal welfare than animals raised on factory farms, though this outcome isn’t always a priority for regenerative farming’s advocates.
Regenerative farmers do not till the soil and tend to avoid synthetic fertilizers that can damage long-term soil health. This ensures that the soil remains undisturbed and can maintain its structure and nutrients, creating better quality crops.
Regenerative agriculture farmers avoid dead spots in the year, when the fields are devoid of any plant life. By ensuring that plants are growing year-round, farmers can capture a bit more carbon from the atmosphere and benefit soil health, as well as providing cover that keeps soil in place during wind and rain.
Another key principle of regenerative agriculture is to diversify crops. Monocultures, such as a field that grows corn and only corn every single year, can sap the soil of vital nutrients. The growth of monoculture farming occurred in tandem with the demand for crop feed for animals in confined animal feeding operations (CAFOs), but regenerative agriculture prioritizes using a diverse variety of plants in a given field.
Regenerative farmers strive to use a smaller volume of chemical inputs such as pesticides, herbicides, fungicides, and chemical fertilizers compared to conventional farmers. Reducing synthetics helps some regenerative farmers achieve an ongoing financial benefit, as they decrease their dependence on recurring purchases of chemicals.
An alternative fifth principle is the idea of “soil armor.” Regenerative farmers place a layer of litter on the soil to protect it. This reduces required inputs, and gives the ecosystem within the soil time and space to grow. This also allows the soil to hold more water and helps prevent erosion.
While regenerative agriculture is a trendy new topic for many farmers, and thus does not have meaningful regulations or clear definitions, it does have some basic common practices. The National Resource Defense Council interviewed 100 regenerative farmers to learn about some of them. Here is what they found.
Tilling, especially overtilling, can be detrimental to the health of the soil. Most regenerative farms do not till at all, but some will till when they consider it necessary.
Double-cropping refers to an agricultural practice where two crops are harvested in one year, usually in two different seasons. Cover cropping is when a farmer adds a crop to soil when it would normally lie barren, either between seasons or in between rows of crops. Both of these practices can reduce erosion, improve soil health, and increase water retention of the soil.
Each of these methods is a way of avoiding plant monocultures.
Precision agriculture is the science of improving farm yields with technology, sensors, and analytical tools. For example, a farmer may test the acidity of the soil throughout the growing season and make adjustments based on which crop is growing at that time. By maximizing crop output, more food can be grown using the same amount of land.
Sometimes called “intensive rotational grazing” or “holistic grazing,” regenerative farms manage the grazing of animals by confining them to a small section of pasture called a paddock for a period of time, then moving them to a second paddock, and allowing the pasture in the first paddock to recover while the animals are grazing in the second paddock. Farms might have anywhere from two to thirty or more paddocks. Rotational grazing may improve the soil and plant life as compared to continuous grazing systems.
Typically, animals on regenerative farms have more access to the outdoors where they can express natural behaviors like grazing and have more space per animal. Animals are less likely to be crowded into small and unhygienic pens or barns and more likely to enjoy a more natural environment. This is undeniably a benefit for farmed animals, but it comes with a very significant caveat.
Unfortunately, regenerative agriculture is not synonymous with high animal welfare. Farmers are permitted, under the principles of regenerative agriculture, to practice branding, dehorning, debeaking, and other cruel practices. Animals in all forms of farming systems are still killed when they reach “slaughter age,” usually taking years or decades off of their natural lifespans. And regenerative agriculture can still use genetically engineered animal species, like broiler chickens, who grow so fast they often experience poor health due to their “optimized” bodies.
To quote from our report on farmed animal welfare in the regenerative agriculture movement:
Regenerative farmers and ranchers in particular see themselves as advocates for farmed animals because they provide individual care for animals and choose farm practices that are significantly more labor intensive than industrial agriculture. However, the regenerative movement’s commitment to animal welfare is not universally held or applied, and farmers may accept some amount of suffering as necessary for their economic viability. Sometimes farmers and ranchers make compromises they attribute to structures outside of their control, including access to high welfare genetics, consumers’ unwillingness to pay higher prices, proximity to slaughterhouses with higher welfare technology, etc.
Regenerative agriculture often is a step forward for animals, but should not be confused with an adequate solution to the problem of animal welfare in agriculture.
Some regenerative agriculture farms may engage in greenwashing and mislead the public about how sustainable their practices actually are.
For example, the claims of regenerative agriculture to actually sequester more carbon than naturally produced by ruminant animals are not supported by the scientific literature. In a meta-analysis of over 300 studies conducted by Food Climate Research Network (the largest known scientific review of regenerative agriculture), grazing animal systems were found to only offset between 20 and 60 percent of their own emissions, depending on the type of system. Further, soil sequestration will peak after a few decades, meaning that regenerative agriculture’s ability to offset the emissions from ruminant animals is only temporary. This casts doubt on the future of the carbon sequestration in regenerative agriculture.
In fact, the original TED Talk that kickstarted the modern regenerative cattle movement has been criticized by scientists, so much so that TED posted an official update on the speech, acknowledging that the scientific claims in the speech are “complicated” at best and should be viewed in the wider context of research. Given this larger scientific literature, claims of “carbon-neutral” or “carbon-negative” beef should be met with extreme skepticism.
Regenerative advocates also claim that regenerative agriculture can stop or even reverse desertification across the world through holistic grazing practices. However, many global ecosystems evolved without large-hoofed mammals like cows. For example, in a scientific critical analysis of regenerative agricultural claims in the International Journal of Biodiversity, the authors summarize:
Western US ecosystems outside the prairies in which bison occurred are not adapted to the impact of large herds of livestock. Recent changes to these grassland ecosystems result from herbivory by domestic livestock which has altered fire cycles and promoted invasive species at the expense of native vegetation.
More environmentally friendly than a switch from industrial animal farming to regenerative animal farming—both in terms of land use and carbon sequestration—would be a switch to entirely plant-based food systems (or those that include cultured meat products).1 If regenerative agriculture has a place in mitigating climate change, it must go hand-in-hand with a global reduction in meat consumption, thanks to the lower density of regenerative animal farming as well as the need to further reduce emissions. So despite regenerative agriculture’s benefits for soil, it cannot solve agriculture’s contributions to climate change as is sometimes claimed.
All forms of animal agriculture can increase the chances of pandemics, including regenerative agriculture. Because holistic grazing demands high land use, it often encroaches on native species and can raise the risk of disease by increasing human-wildlife interactions. A 2022 study on how different farm practices contribute to emerging infectious diseases (EIDs) found that “less ‘intensive’ systems are liable to be low-yielding. This means they require both a larger livestock population and more land and hence greater habitat loss and degradation, increasing the risk of zoonotic EID emergence.”2.
No, regenerative agriculture is not a climate solution on its own. Because regenerative animal-based agriculture requires massive amounts of land and cannot sequester as much carbon as it emits, it would need to be paired with dramatic reductions in meat consumption to significantly lower the emissions from agriculture.
No. Regenerative agriculture is not efficient, especially with regard to land use. Further, regenerative animal-based farming requires more land than industrial farming systems, at least 2.5 times more land according to a report funded by regenerative farmers. Meat production already takes up about three billion hectares of land globally; if we expand that land 2.5 times as required by a regenerative system, we would use over 60 percent of the Earth’s land—with just the current population.
We will need to increase food system efficiency by 50 percent by 2050 to feed the growing population. There is not enough land in the world to feed enough people if our agricultural systems were switched entirely to regenerative animal-based agriculture.
Regenerative agriculture’s potential for restoring biodiversity depends on the location and type of regenerative agriculture. Farmed animals are now widespread across the world, but most did not naturally co-evolve naturally with any ecosystem. When animals graze on land far removed from their ancestors’ natural habitats, it may not benefit local biodiversity.
One study that examined 29 years of land use in different grazing systems found that grazing cattle improved biodiversity by 30 percent, but native grazers (in this case, bison) improved biodiversity by 86 percent. Another study that analyzed livestock in the United States argued that “cessation of grazing would decrease greenhouse gas emissions, improve soil and water resources, and would enhance/sustain native species biodiversity.” So holistic grazing may improve biodiversity in certain areas, but not nearly as much as allowing native fauna to thrive and/or rewilding land from animal agriculture.
In our report on regenerative agriculture, we outline that large-scale shifts to regenerative agriculture would require financial incentives such as “philanthropic grants, pension funds, real estate investment trusts, and private investment in climate change mitigation strategies.” Further research, increased consumer interest, and improved regulation of the industry would also be needed to accelerate a hypothetical transition.
Regenerative agriculture is a system of practices that prioritize, among other things, soil health. But the terms are not interchangeable.
The easiest way to support regenerative agriculture on an individual level is straightforward: patronize local regenerative farms.
While many aspects of regenerative agriculture are more sustainable than industrial agriculture, such as reduced tilling, reduced pesticide use, and diversifying crops, regenerative agriculture is not inherently sustainable, especially because ruminant animals emit more greenhouse gases than can be stored by the soil. Plant-based agriculture is more sustainable from an emissions standpoint than any animal-based regenerative system.
Further, regenerative agriculture uses massive amounts of land, and thus cannot be scaled up to feed the global population. Regenerative agriculture can play a role in climate harm mitigation, but only if paired with substantial shifts in diets toward plant based foods.
Elin Röös, et al., “Protein Futures for Western Europe:Potential Land Use and ClimateImpacts in 2050,” Regional Environment Change 17 (2017): 367–377, https://doi.org/https://doi.org/10.1007/s10113-016-1013-4.
Harriet Bartlett et al., “Understanding the Relative Risks of Zoonosis Emergence under Contrasting Approaches to Meeting Livestock Product Demand,” Royal Society Open Science 9, no. 6 (June, 2022), https://doi.org/10.1098/rsos.211573.