EN guest editor Simon Parker speaks to event professionals from Informa, EIA and two new startups about the issue of sustainability  While it is great to see sustainability gaining traction across our industry, it still appears to be something that needs greater focus. Momentum is undoubtedly building and I have managed to get the views from Kerrie Kemp, Informa (pictured), the EIA (Event Industry Alliance) and two new startups aimed at driving cha...