Soilsare essential to our life and wellbeing, and to the functioning of the Earth system. 

Sometimes soil is called the "living skin of the Earth" — and for good reason. It plays many roles that support life. Soil helps plants grow, giving us food, clothing materials like cotton, and resources like wood. It also acts as a natural filter, cleaning water by trapping harmful substances and preventing them from reaching our food and water supplies. On top of that, soil stores water, helping plants survive during dry periods and reducing the impact of floods.

Soil is also full of life. It's home to countless organisms — from tiny insects and earthworms to small mammals. These creatures keep the soil healthy by breaking down organic matter and recycling nutrients. Some, like ants and earthworms, are known as "ecosystem engineers" because they shape the soil in ways that benefit other living things.

Even the tiniest life forms in soil — microbes — play a big role. While some can cause illness, many are essential for our health. They help protect us from allergies and even provide us with medicines like antibiotics. Microbes also influence the air we breathe by controlling the exchange of gases like carbon and nitrogen between the soil and the atmosphere — which plays a major part in climate regulation.

Soil also tells stories. It holds clues about the past, like a treasure chest or a time machine. Over time, soil covers and preserves remains of past human life — ancient tools, buildings, bones, and pottery. When archaeologists uncover these items, we learn more about how people lived, what they valued, and how our societies have changed.

Despite what we already know, there's still so much left to discover, especially about the hidden world of microscopic life in the soil. Unfortunately, most people don't give soil much thought, even though our lives depend on it every day.

That's where we come in. Together, we can help spread the word about the wonders of soil — and why it's worth and essential protecting, studying, and celebrating.