The lecture “Development of green economy models in real life socio-economic conditions” by Raisa Adarina attracted the attention of more than 70 participants, including those who watched it on YouTube (https://www.youtube.com/channel/UCbWOsyHFFvaAdxFYzBEMtcQ). It was conducted within The ACT! webinar series that also makes for the MOOC of SDGs for Arctic and mountain sustainability.