carbon footprint in report

[daaaaande]

Is your feature request related to a problem? Please describe.
no problem per se, just a tool that could know all the variables needed for calculation

Describe the solution you'd like
snakemake knows the used ressources of orchestrated workflows, even if it is resumed after failed sub-jobs. Snakemake knows the utilized ressources and the actual walltime used. This combined with the world average or country-typic co2/ressource tables should make this possible. In the best case, after each snakemake execution i see a estimate on co2 equivalents used by my pipeline, maybe even in more simple-to-understand numbers such as car km driven equivalent, flight time equivalent.... In the best case as the command line executes the all: rule or maybe just part of the report that snakemake can do. should use minimal compute ressources.

Describe alternatives you've considered
something like this: https://github.com/mlco2/codecarbon is apparently already available for nextflow. This would motivate users to be more energy efficient, benefiting everyone?

Additional context
i see there might be more important things to fix/add, but that's why this is only a feature request.

[johanneskoester]

Very nice idea! I would love to accept a corresponding PR.

[cmeesters]

Perhaps of interest in this regard: mlco2/codecarbon#431

After all, we are not particularly interested in the footprint of machines or Snakemake itself, but rather of the triggered processes.