There is a growing demand for planting exterior green walls in cold climates, but freezing temperatures can take a toll on plants in these systems. Three experts weigh in to share their winter survival secrets: Joep van Vilsteren of Sempergreen; award-winning green roof and wall designer Randy Sharp; and Lucas Moran of green wall manufacturer New Earth Solutions.

How green roof plants can survive the freezing, thawing and warming of our winters is a mystery to many, and it has become more complicated due to climate change. Find out how they survive and what you can do to help them adapt to these changes.

Over the past decade, there has been a lot of talk, research, and pilot projects around the concept of "smart cities", integrating technology into our cities. For the most part, nature, the very foundation on which cities are built, has been left out of these discussions. Dr. Nadina Galle shares with us here her pioneering work on a new concept she calls the "Internet of Nature".

We asked four prominent Green Roof Industry leaders representing different aspects of the industry to share their thoughts about adapting to the Covid 19 Pandemic and the future of the industry.