GreenÂ building, sustainableÂ design, carbon footprint ...Â buzz words you've undoubtedly heard a lot of in the last year or so. Concrete's contribution to energy efficiency in building and a host of other "green building" benefits are being recognized more and more by the architecturalÂ community and building owners. That's why I'm looking forward to attending the Concrete Technology Forum in Denver in May. Sponsored by the National Ready Mixed Concrete Association, the 3-day event offers educational sessions on topics such as pervious concrete systems, concrete's impact on urban heat islands, the carbon footprint of concrete, sustainable development initiatives, and optimizing recycled content.Â In addition, aÂ product expo will be open during the event. To learn more about the Concrete Technology Forum and registration, visit www.ConcreteTechnologyForum.org or call (240) 485-1152.