OurWorldInData
Integrates Charts from https://ourworldindata.org - see: Extension:OurWorldInData. More interesting for Energypedia.info than for WebMo.
Examples:
<ourworldindata time="earliest..2003">annual-co-emissions-by-region</ourworldindata>
<ourworldindata>historic-and-un-pop-projections-by-age</ourworldindata>