I was awarded a NERC Independent Research Fellowship for the project 'An understanding of biomineralisation pathways is key to predict climate change impact on aquaculture'. Climate change, in particular ocean acidification and global warming, threaten the marine environment. Calcium carbonate is abundant in the oceans as organisms such as shellfish produce protective shell structures. The amount of carbonate available in the oceans under ocean acidification will be reduced, limiting the ability of organisms to produce protective shells. My research aims to accurately assess the effects of predicted ocean acidification and global warming scenarios on marine shellfish. Determining the impact of changing environments on shell ultrastructure will enable us to predict the vulnerability of these organisms to climate change. Changes in the carbon source may limit shell formation although calcifying organisms such as mussels and oysters can control biomineral growth. Understanding this biomineralisation process is vital to predict how vulnerable shellfish are to shell breakage and reduced survival under climate change.