The Water Cycle Imperative

Water is more than a passive player in climate regulation—it’s a powerhouse for cooling the planet. Occasionally remembered as an important greenhouse gas, water vapor is instrumental in cloud formation which in turn plays a key role in the albedo effect.  Under certain circumstances clouds reflect solar radiation and reduce heat. Forests impact this process through evapotranspiration, playing a crucial role in cloud formation. Yet, this forests-water-climate nexus is often overlooked in climate change mitigation and adaptation strategies.

Restore with water in mind

Climate and water science are at the roots of WeForest, and the organisation is deeply influenced by the groundbreaking research on the biotic pump theory and regenerative agriculture movement.Today WeForest collaborates closely with AfroGrow and Mekelle University to deepen knowledge of the water-science cycle and make informed and effective operational decisions.

“Freshwater scarcity affects food security, nutrition and development. A reliable access to freshwater is a prerequisite for achieving all Sustainable Development Goals (SDGs)”

What we learn with water cycle science

Over the last decade, water science has expanded far beyond the watershed and blue water—streams, rivers, and lakes. Hydrology now uncovers how landscapes influence atmospheric water flows.

Key breakthroughs show that forest restoration can shape rainfall patterns, not just locally but across regions. Through processes like precipitation recycling and the biotic pump theory, we’ve learned that evaporation in one area can fuel rainfall in another. In other words, restoring tree cover in one region can impact water availability far beyond its borders.

This evolving science highlights a powerful insight: the water cycle isn’t just something we manage within a landscape—it connects them all.

Water cycle compatible projects

Each landscape is different. But the story is the same: Forests regulate the water cycle. And when we restore them, we restore water.

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Resources

Forests and the water cycle:  The water movements and changes of state (ice, liquid water and vapour) as it interacts with plant life and the atmosphere has extensive stabilizing and cooling effects.

Relevant research

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