The choice of the most suitable LCIA method depends on the goal and scope definition. In general, in my opinion, it is useful to chose different methods (e.g. Recipe 2008, Ecological Footprint, IPCC, etc.) in order to obtain a broad analysis of the problem.

The choice of the most suitable LCIA method depends on the goal and scope definition. In general, in my opinion, it is useful to chose different methods (e.g. Recipe 2008, Ecological Footprint, IPCC, etc.) in order to obtain a broad analysis of the problem.

It also depends a lot on the focus of the assessment. The terms are widely used but rarely understood entirely. Most people have something much more specific in mind when they talk about LCIA...

As you mentioned there are several methodologies for LCIA and there is always a question which one can be used. It highly depends on your goal and scope definition in which you elaborate which impact categories are important and related to your study. Each methodology has its own advantage and disadvantage. i.e. CML2 embraces 10 different impact categories including GWP, human Toxicity and etc. but land use in not included in it. Also, water footprint is not included in most of these methodologies. If you use software (SimaPro, Gabi , etc.) you can use just one these methodologies but without using LCA software you can combine different methodology to develop your own project.

Thank you everyone for your answers.

I would like to further this discussion by asking which methodology is consistent with Indian scenario?like comparing alternatives in housing material

Hi Karan,

Indeed, it will depend on the goal and scope of your study. For instance, TRACI is modeled specifically for North American impacts, while others such as ReCiPe are for European impacts. The impact categories can also differ based on midpoint or endpoint impacts, calculation methods and units and weighting/normalization.

Best,

Michael