Gaia's Immune System (en Inglés) - Sinead Mullany

What if Earth's greatest catastrophes were also signs of a living system under pressure?

Gaia's Immune System explores the planet as a vast network of atmosphere, ocean, ice, stone, fire, carbon, and life. Using the Gaia idea as a powerful dramatic frame, this book follows the hidden history of Earth's responses to crisis, from the first oxygen released by ancient microbes to the frozen world of Snowball Earth, from the volcanic violence of the Great Dying to the asteroid that ended the age of dinosaurs.

This is not a fantasy of a planet with human emotions. It is a vivid journey through Earth system science, where the living world and the physical planet are bound together in one immense pattern of pressure, damage, recovery, and renewal.

Inside this book, you will explore:

• The Great Oxygenation Event and the microbial breath that remade the sky
• Snowball Earth and the terrifying possibility of a world sealed in ice
• The Permian extinction and the fever of volcanic carbon
• The ocean as Earth's circulation and climate regulator
• The carbon cycle as the planet's ancient system of storage and repair
• The Chicxulub impact and the cosmic violence that changed evolution
• Forests, reefs, ice, fire, microbes, and extinction as part of Earth's long record of survival
• The modern climate crisis through the deep memory of planetary history

Gaia's Immune System reveals Earth not as a passive stage beneath our feet, but as a dynamic living pattern shaped by feedbacks, thresholds, cycles, and consequences. It is a book about deep time, planetary resilience, mass extinction, climate change, ancient oceans, biological transformation, and the unsettling truth that life has always changed the conditions of life.

For readers of Gaia theory, Earth system science, environmental history, deep time, paleontology, planetary science, and spiritual ecology, this book offers a striking way to understand the world we live inside.

The planet does not need to be conscious to respond. It only needs systems powerful enough to remember pressure and answer it.