Melissa Fleming, UN on the app called Act Now

"We also have an app called Act Now, which allows individuals to sign up to take individual actions. We believe individual actions are extremely powerful from doing personal things to mitigate your own climate footprint, but also ways to speak up, ways to get involved, ways to get politically involved in the climate movement. So, join ACT now. We've already have 20 million individual actions recorded.
And we've also been able through this campaign to engage influencers in from all walks of life, from fashion, from cooking to sports. So if you do join Act Now, you're going to join an amazing and flourishing community of people who care about our climate, who believe that things can be done, that together we can. Demand and create a world where climate change is halted and where we can together live on a healthy planet."