This recording concerns the first presentation about mitigating climate change in urban areas, presented by Mattheos Santamouris during the second ThinkNature webinar at 14/3/2019 about "Technology and Practice of NBS". This webinar invited scientists, potential NBS practitioners, market actors and end users, to discover aspects relevant to technology and practice of NBS. In the context of this webinar, the above-mentioned issues were presented by major NBS experts and the attendees had the opportunity to participate in short surveys and pose their own questions regarding the presented issues to the speakers.