Ocean Action Hub

Meet the Moderators

Kirsten Isensee

Project Specialist, Ocean Carbon Sources and Sinks, UNESCO Intergovernmental Oceanographic Commission (IOC)

Kirsten's work focuses on seeking to distinguish between the natural and anthropogenic influences on the marine environment. She supports several initiatives and facilitates collaboration between scientists, policymakers and stakeholders, including networks such as the Global Ocean Acidification Observing Network, the International Blue Carbon Initiative, the International Group for Marine Ecological Time Series and the Global Ocean Oxygen Network. She received her diploma and conducted her doctorate research in Marine Biology at the University of Rostock, Germany. During her studies she specialized in the impact of Ocean Acidification and climate change on the marine environment.

David Osborn

Director, Environment Laboratories, International Atomic Energy Agency (IAEA)

David is Director of the Environment Laboratories of the International Atomic Energy Agency. Located in Monaco these are the only marine laboratories in the UN system and host the Ocean Acidification – International Coordination Centre. Formerly with the United Nations Environment Programme (UNEP) in Nairobi and The Hague, he was Coordinator of the 1995 Global Programme of Action for the Protection of the Marine Environment from Land-Based Activities and Coordinator of UNEP’s Ecosystem Management Programme. A national of Australia with qualifications in applied science and environmental law, his career has focussed extensively on the link between science and good governance. He has held director posts at the Great Barrier Reef Marine Park Authority and the Australian Government’s Department of the Environment and Water Resources. He has served as an Advisor to the Australian Government Minister for the Environment and was formerly an officer in the Royal Australian Navy.

Bronte Tilbrook

Researcher, CSIRO Oceans and Atmosphere and the Antarctic Climate and Ecosystems Co-operative Research Centre

Bronte Tilbrook is based in Hobart, Tasmania, where his research incudes developing and utilising observing systems to determine ocean acidification and carbon uptake in the ocean. The research extends from the tropical Great Barrier Reef to the Antarctic shelf. He has contributed to a number of international efforts to coordinate and improve understanding of ocean acidification and carbon cycling, serving on numerous international steering committees, and is co-chair of the Global Ocean Acidification Observing Network.

Libby Jewett

Director, NOAA Ocean Acidification Program

Libby became the founding Director of the NOAA Ocean Acidification Program in May 2011, and has been busy ever since building, organizing and steering the NOAA OAP enterprise. As a founding member of NOAA's Ocean Acidification Steering Committee, convened first in 2007, she co-led NOAA-wide meetings of scientists and policymakers to conceive and develop NOAA's first comprehensive ocean acidification research plan. She chairs the Ocean Acidification Interagency Working Group (under the Subcommittee on Ocean Science and Technology) where she helped develop an ocean acidification strategic research plan for the nation. She is co-chair of the Executive Council of the newly formed Global Ocean Acidification Observing Network. She earned a Ph.D. in Biology with a focus on Marine Ecology at the University of Maryland, a Master of Public Policy at Harvard University's Kennedy School of Government, and a B.A. at Yale University