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How we are reshaping the Earth system

Human impacts on our life-support system began during the last ice age, with the mass extinction of large animals each time our ancestors arrived in a new continent on their …

Microbes Inside You

Invisible you – the human microbiome We are not alone. Our bodies contain at least as many microbial cells as human ones. These ‘communities’ in and on our person are, …

Gaia and the dawn of Gaia 2.0?

Illustration by Glynn Gorick showing the relative sizes of the worlds’ interconnected 8 biomes A theory and a way of understanding the Earth and its interconnections: The Gaia Hypothesis The …

Planetary Boundaries

Scientists have pinpointed nine ‘Planetary Boundaries’ that mark the limits for our life support system. Within these limits, there is a safe operating space for life as we know it …

Who are the Small Invisible?

Microbes come in all shapes and sizes. In this article, we’re going to introduce a few different types. It’s time to meet the small invisible! Eukaryotes Eukaryotic organisms can be …

Microbes Running Our Life Support System

Microbes play many different roles on Earth, and in the life support system. In this article, we’ll introduce you to some of the key players! Sunlight Harvesters and Oxygen Producers …

Phosphorus – Time to see the light

Phosphorus is perhaps a lesser-known element, but its role in life and the Earth support system is immense. Phosphate comes from rock, is mined by microbes (and people) and enters …

Nitrogen Gas to Muscle Mass

The air is 78% nitrogen, but we can’t access it. Certain microbes, industrial processes, and lightning can. They turn nitrogen gas into plant fertiliser. Plants then turn it into plant …

What is the carbon cycle?

Carbon is essential. All life on Earth is made up of compounds that contain carbon. We eat carbon in our food. Some we store or make into our body parts. …

Oxygen and Complex Life

As well as big changes to atmospheric composition, arguably the biggest changes from oxygen came from the developments made to the complexity of life. As the Earth re-stabilised following the …

Changes in our atmosphere

Navigate down 4.5 billion years of Earth history as we explore the evolution of oxygen, a gas produced and used by life. Oxygen wasn’t always present, it now exists at …