PERIVALLON21 DELIVERS ENVIRONMENTAL EXCELLENCE THAT NO OTHER PUBLICATION DOES Covering upstream Environment and Sustainability, offers a one-stop resource. A monthly magazine with in-depth knowledge base articles. Our readers look to us for information they can use to improve their companies’ operations and their own professional skills. PERIVALLON21 circulation includes readers that are responsible for recommending, specifying, approving and purchasing Environment and Sustainability policies and services PERIVALLON21 was founded early 2005, and is published monthly by Connective Publishing Company. Its editorial content covers latest in Environment, Sustainable Economic, Sustainable National and European Climate policies and issues and other upstream segments of the worldwide Environment and Climate priorities.