The relationship between food and biodiversity has just taken on a new dimension. A team from the University of Cambridge has developed a tool capable of measuring how much each product contributes to the disappearance of more than 30,000 terrestrial species.
The method, called LIFE, analyzes how land use change—from forests to pastures or industrial crops—alters the survival of wildlife. Its initial application shows that the effects are more severe than imagined.
Projections estimate between 700 and 1,100 extinctions in the next hundred years if current consumption and production patterns remain unchanged.
This scenario forces us to rethink what we eat, where it comes from, and what the real cost of each food on the planet is.
Meat, territory, and accelerated habitat loss
The LIFE analysis reveals that animal products, especially beef and lamb, exert the greatest pressure on ecosystems. Their production demands vast expanses of land that displace forests, wetlands, and essential spaces for wildlife.
Every kilo of meat involves converting entire natural areas into pastures, reducing shelters and fragmenting ecological corridors. In many regions, this process is already pushing entire species into areas where they cannot survive.
Crops intended to feed livestock also increase soil degradation, multiply water use, and affect sensitive species that depend on native vegetation.
The hidden impact of what we import
The tool allows tracking impacts beyond each country’s borders. It records the environmental cost of products imported from regions with greater biodiversity, where human pressure is especially critical.
In the case of developed countries, much of their extinction footprint occurs far from their territory. Importing meat from ecologically fragile areas can multiply the risk to local wildlife in those regions up to forty times.
This external impact reveals the need to look at the global chain: it is not enough to protect national ecosystems if consumption drives degradation in other parts of the planet.
A tool to unite science, policies, and everyday decisions
The LIFE system combines data on consumption, production, and origin of 140 foods. Its goal is to become a guide for governments, companies, and citizens seeking to reduce their ecological impact.
It is already used to evaluate agricultural policies and design strategies that reduce pressure on ecosystems. Its development represents a bridge between scientific research and everyday decisions.
The metric allows comparing products, identifying critical points, and defining priorities in the transition towards more sustainable food systems.
Disturbing prospects for global biodiversity
Although the projected extinction figures are already alarming, experts warn they could be even higher. Population growth, the expansion of the agricultural frontier, and the effects of climate change accelerate habitat loss.
Species with small distribution areas or high ecological sensitivity are the first to cross irreversible thresholds. In many cases, the disappearance could occur without being documented in time.
The LIFE tool offers an early risk map, but its usefulness depends on concrete actions that modify current production systems.
Habits that can curb the extinction crisis
Everyday eating is one of the most influential environmental decisions. Specific changes can significantly reduce the pressure on ecosystems.
Choosing plant-based proteins, such as legumes or nuts, drastically reduces land demand and habitat loss. These foods require less water, less surface area, and generate a much lower ecological footprint.
Prioritizing local and seasonal products avoids impacts associated with transportation and reduces dependence on imports from fragile regions. Informed purchases at local markets help maintain more balanced agricultural systems.
Additionally, opting for meat with a lower environmental footprint, reducing its weekly consumption, and supporting agroecological practices strengthens productive models that respect the planet’s limits.
A future that depends on immediate decisions
The Cambridge study marks a turning point by directly connecting individual diets with the survival of thousands of species. The information allows action before the projected scenarios become inevitable.
Global conservation demands profound changes in how we produce food and in the choices we make daily. Every adjustment, no matter how small it seems, contributes to reducing human pressure on ecosystems.
The planet’s biodiversity faces a critical limit. And today, more than ever, what reaches our plate determines which species will have a real chance of survival.
