Callum Ward

PhD Student

School of Engineering & Physical Sciences, Institute of Mechanical, Process & Energy Engineering, Heriot-Watt University, Riccarton, UK

Office: JN 3.03



Research Profile


Callum achieved his Master’s degree in Chemical Engineering with Energy Engineering in 2021 from Heriot-Watt University with first class honours. His masters projects were focused on the chemical recycling of waste plastics and the sustainability of palm oil, the 2 projects encompassing sustainability from varying perspectives  (design / research).  

Beginning in September 2021, he then transitioned to a position in industry where he worked for a startup known as The Future Forest Company, which focused on combating climate change via various reforestation/carbon dioxide removal approaches. Initially undertaking some base research on enhanced weathering experiments/trials, Callum then developed and managed the core processes for operational data management, life cycle assessment and quality control for the scaling of Enhanced Weathering from pilot to commercial scale. As the business grow rapidly the Enhanced Weathering area of the business became UNDO and he worked with teams across the business to ensure all aspects of scaling were covered, from data capture during spreading of crushed rock on farmland to the generation of carbon credits backed by the captured operational data.  

Leaving the company after 2 years to pursue a new challenge and continue working to combat climate change, Callum is now a full time PhD student working within the Research Centre for Carbon Solutions at Heriot-Watt University. His research is focused on strategies for the evaluation and assessment of ocean based carbon dioxide removal approaches namely using techno-economic and  life cycle assessment to compare the most promising ocean based technologies. The main aim is to develop the framework for the comparison of ocean based technologies using both TEA and LCA. His project will also involve close work with the EU funded SEAO2-CDR project which is aimed at more widely assessing the technical potential of Ocean based CDR methods, encompassing topics such as MRV and TEA / LCA among many others. 

Roles & Responsibilities

Research interests

Callum’s main research areas are Chemical/process Engineering, CO2 capture technology, Circular processes/sustainability, Life cycle assessment, techno-economic assessment.