Carbon Capture Research:
https://concreteproducts.com/index.php/2021/11/03/agency-funds-carbon-capture-research-at-top-north-american-cement-mill/

Pressure Swing Adsorbtion:
https://www.engineering-airliquide.com/pressure-swing-adsorption-psa-hydrogen-purification

Carbon Footprint:
https://www.cement.org/docs/default-source/th-paving-pdfs/sustainability/carbon-foot-print.pdf

Presenting Sponsor, Acti-Gel 208:
https://activeminerals.com/products/acti-gel-208/