The Hidden Treasure: Grasslands, Carbon, and Climate Resilience

Dear Colleagues,

Grasslands, which cover about 54% of the Earth’s surface (from “Rangeland Atlas”), are often overlooked in the climate debate, yet they represent a vital carbon sink and a bulwark of ecological resilience.

Unlike forests, which store most of their carbon in above-ground biomass (trunks and branches), grasslands hold up to one-third of the world's organic carbon in their soil, mainly thanks to their dense root networks. This feature makes them particularly valuable: in the event of fires, the underground carbon remains protected, preventing the massive release that occurs when trees burn.

However, these ecosystems are increasingly threatened by climate change and human activities, such as agricultural expansion and intensive grazing. Rising temperatures and reduced plant biodiversity in alpine pastures or global savannas can lead to a loss of humus and, consequently, the release of carbon into the atmosphere, compromising their function as “carbon sinks.”

To address the climate crisis, the conservation and sustainable management of grasslands are crucial. Practices such as rotational grazing or the restoration of degraded pastures not only improve soil health and biodiversity, but also increase carbon sequestration capacity, strengthening the resilience of these vital ecosystems against the impacts of a rapidly changing climate. Grasslands are not just grassy fields: they are a strategic ally for the future of the planet.

I look forward to receiving your contributions.

Dr. Alberto Minelli
Guest Editor

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