Dr Simon Lewis, an expert who helped to define the Anthropocene, explores the existential threat of climate change.

Professor Pamela McElwee explores how environmental degradation can be directly traced to colonialism and racism.

Professor Deborah McGregor explains how systems like agriculture and the commodification of water are at the root of the current climate crisis.

Dr Ayana Johnson, an expert on ocean conservation, looks at the major impacts of humans on the ocean, from coral bleaching to overfishing.

An expert on the energy system that led to the expansion of humans across the planet, Professor Narasimha Rao, searches for solutions that could reduce emissions.

Garry Petersen from the Stockholm Resilience Centre explains how humans must adapt if they're to avoid tipping points that will lead to irreparable harm.