id you know that and are like two puzzle pieces that fit together? World Cities Day, people from all around the world come together to talk about how we can stop the Earth from getting too hot. By using clean energy, planting trees and taking care of nature, we can help our cities become healthier and happier while also protecting the Earth. So, when we celebrate World Cities Day in October, we’re also thinking about how to make the planet a better home for everyone on International Day of Climate Action. It’s like making a promise to our cities and our Earth at the same time!