By the nature of the beast, trade shows tend to be wasteful and they have a very negative environmental impact. Historically, there has been a very "disposable" culture surrounding trade shows. A lot of displays and items are intended to be used once and then thrown away. Add to that all of the freight and travel associated with trade shows, and you are driving up the carbon footprint even more. Things have definitely gotten better in recent years, but there is still room for improvement. Here are 5 ways to exhibit greener and reduce your environmental impact at your next trade show.