In this new research, Associate Professor Revell is leading a team of associate investigators, including Dr Karin Kvale from GNS Science and Dr Nikolaos Evangeliou from Norwegian Institute for Air Research (NILU) to carry out world-leading analysis investigating future microplastic-climate effects.
Microplastics are in the air we breathe and influence climate on a global scale by absorbing and scattering light, Associate Professor Revell says.
They are also ubiquitous in the worlds oceans, with an estimated 15-51 trillion microplastic particles floating at the sea surface globally. Recent research indicates that microplastics are emitted from the ocean to the atmosphere, and seed cloud formation. Both processes are relevant to climate change; however their impacts cannot be accounted for because global climate models do not represent these newly-discovered processes.
This project will directly contribute to important world-firsts in microplastic-climate research: coupling ocean-atmosphere fluxes of microplastics and exploring the climate impacts of microplastic-rich clouds, she says.
It is estimated that, unless serious changes are made to curb global plastic production and improve the way that plastic waste is managed, the abundance of plastic litter will double over the next 30 years. So, this ambitious, original and world-leading research will gain globally relevant and time-critical insights into the extent to which plastic litter may influence future climate change.
Her latest Marsden grant builds on a泭previous Fast-Start grant泭from the same organisation in 2019, when Associate Professor Revell started studying this field. She has also won the泭Cooper Award泭 the Royal Society Te Aprangi Early Career Research Excellence Award for her chemistry-climate interactions modelling work.
Associate Professor Revell says the research will be based on future scenarios ranging from immediate cessation of plastic production, to business-as-usual production and waste management.
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