CLIMATE AND EARTH
SYSTEM SCIENCES
Photo: UHH/Denstorf
23 February 2023
Photo: private
His thesis "Investigating the Impact of Microplastic Pollution on the Marine Carbon Cycle: A Literature Review and Qualitative Network Modelling Analysis." was supervised by Prof. Dr. Inga Hense and Dr. Maike Sheffold.
Alex investigated the impact of microplastic pollution on the marine carbon cycle using a qualitative network modelling approach. The study involved a thorough literature review that examined the effects of microplastics on different marine ecosystem components, including phytoplankton, zooplankton, and particulate organic matter settling.
The literature review findings were incorporated into a qualitative network model (QNM) to investigate the long-term response of various marine ecosystem components to an anticipated increase in microplastic pollution. The study found that an increase in microplastic concentration would likely result in a decrease in sediment carbon stocks, which could impact the estimated temperature response of projected anthropogenic CO2 emissions.
As for Alex's future plans, Alex has recently accepted a junior researcher position at a private-sector data company that offers statistical data and insights across a variety of different markets, topics, and industries. The focus of their research will be on investigating energy systems and environmental change, with a particular emphasis on chemicals and plastic usage.