Between 2005 and 2009 Dr Walsh undertook a Ph.D. in the University of Limerick in applying and modifying a land-based indicator of sustainability; the ecological footprint which was undertaking a standardisation process. This work culminated in being involved in a joint publication with global practitioners (including concept founder Mathis Wackernagel) on establishing a research agenda. In particular, this research proposed a methodological system for incorporating methane into the standardised ecological footprint calculation methodology. Following on from this Dr Walsh undertook an extended period of post-doctoral studies at the University of Manchester across a number of different topics, primarily examining the role of the shipping sector in UK and Global Emission budgets. In the first instance this a project funded through the Engineering and Physical Sciences Research Council (EPSRC) was associated with the development of scenarios of UK trade including the effect of domestic decarbonisation on shipping emissions. Dr Walsh has diverse experience undertaking lifecycle assessments across a range of different sectors including agriculture, industry, transport etc. This includes leading and undertaking research in the goal and scope definition, inventory assessment and interpretation. Within a large-scale consortium project Dr Walsh has lead both global trade scenario development and detailed lifecycle assessment of global marine fuel cycles. The latter entailed the training and support of colleagues on the use of dedicated lifecycle Simapro. Dr Walsh has undertaken two detailed LCAs of agricultural of part of EU Commission value chain analyses for development (VCA4D) which undertakes value chain analyses across a range of agricultural commodities and countries in order to evaluate their contribution to growth and job creation, balanced against the sustainability and inclusiveness of these value chains. This included the presentation of results in a comprehensive manner but also communication of the strengths and limitations of LCA as a tool in informing sustainability. Dr Walsh has presented a range of public engagement and knowledge exchange events including café scientifique and pinfoscience. In addition to this Dr Walsh also served as a reviewer of a further VCA4D LCA exercise. Dr Walsh is a fellow of the Higher education Academy and h-index score of 16 according to google scholar.

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