A global study released in March 2026 [1] warns that accelerating biodiversity loss across ecosystems threatens food security, human health, and climate stability.

This degradation matters because the loss of species richness weakens the essential ecosystem services that regulate the global climate. If the carbon cycle is destabilized, the ability of the planet to mitigate warming could be severely compromised.

Researchers from the Helmholtz Centre for Environmental Research (UFZ) and an international consortium of scientists led the investigation. The study examined major ecosystems globally, including the Amazon rainforest, African savannas, and peatland regions such as the Brazilian cerrado [1].

The findings indicate that biodiversity loss is being driven by a combination of climate change and land-use changes. Notably, the report highlights a conflict between biodiversity and large-scale carbon-removal projects. While these forestation efforts aim to capture carbon, they may actually degrade habitats and reduce the variety of species in those areas [1].

This reduction in species richness creates a feedback loop that weakens the natural systems underpinning food production. The researchers said that the degradation of these habitats directly impacts the stability of the carbon cycle, a critical component in preventing extreme global climate outcomes.

The study suggests that current land-use strategies may be counterproductive if they prioritize carbon sequestration over the maintenance of complex biological networks. Without a shift in approach, the loss of biodiversity could accelerate the very climate instability these projects intend to solve [1].

“Biodiversity loss is accelerating across ecosystems, threatening food security, climate stability, and human health.”

This research suggests a critical tension between immediate carbon sequestration goals and long-term ecological health. By prioritizing fast-growing forestation projects over biodiversity, policymakers risk creating fragile monocultures that are less resilient to climate shocks and less effective at sustaining the carbon cycle over time.