The Unseen Agents of Climate Change | Ep269: David Kirchman

Microbes rarely feature in discussions about climate change, yet they play a central role in regulating greenhouse gases through the Earth's carbon, methane and nitrogen cycles. As the climate changes, understanding these natural processes is becoming increasingly important to develop new approaches to clean energy, agriculture and emissions reduction.

This week on Cleaning Up, Bryony Worthington speaks with Professor Emeritus David Kirchman of the University of Delaware, one of the world's leading microbial ecologists and author of 'Microbes: the Unseen Agents of Climate Change.'

They explore how microbes drive the carbon, methane and nitrogen cycles, how climate change is reshaping ecosystems from permafrost to coral reefs, and how microbial science could help tackle the climate crisis, from microbial fuel cells and lower-emissions agriculture to biofuels, methane reduction and even emerging forms of carbon removal and geoengineering

Topics covered in this episode:

The microbes shaping Earth's climate

Ocean carbon cycle

Methane-eating microbes

Arctic warming impacts

Coral reefs and climate resilience

Low-carbon agriculture

Microbes powering climate solutions

Climate interventions