Dr Lennart Bach is an ARC Future Fellow for Climate intervention at the Institute for Marine and Antarctic Studies, at the University of Tasmania. As a Marine Biogeochemist, Lennart has a special interest in marine plankton communities, the carbon cycle, and ocean-based solutions for the climate crisis.Here Lennart provides a nuanced overview of the ocean-based climate intervention strategies currently being considered.In this episode we discuss:• Lennart’s background and his work as a biogeochemist• Carbon basics in the context of climate change • The marine carbon cycle, ocean acidification, calcification and what this all means for ocean life• The complexity of the ocean’s food web and climate change impacts• The current state of carbon sequestration science• Climate change and ocean-based solution for removing CO2 – the pros and cons of various strategies• Opportunity for Tasmanians to become citizen scientists to get involved in Lennart’s research on ocean alkalinity - Citizen Science Project• The importance of bringing about systemic change to address the climate emergencyTo view all the links to the websites and documents, make sure you visit the show notes on our website. Don't forget to subscribe to this podcast, leave us a review and share this episode with your friends and family.Please support our work and enable us to deliver more content by buying us a coffee.