<https://businessfor.tech/google-engineers-are-helping-a-swedish-start-up-to-build-a-carbon-emissions-tracker/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://businessfor.tech/google-engineers-are-helping-a-swedish-start-up-to-build-a-carbon-emissions-tracker/>