Hi there! Open Source Geospatial Foundation (OSGeo) is like a big group of people who like to use maps and data to help solve problems. Just like how you use a map to find your way to a friend's house, these people use maps and data to find solutions to things like climate change and how to make sure everyone has enough food to eat.
The cool thing about OSGeo is that they believe that everyone should be able to access and contribute their ideas to these solutions, not just big companies with lots of money. It's like everyone in the world can be a scientist and help make the world a better place.
So OSGeo makes sure that everyone can use really fancy computer tools that help make maps and analyze data. These tools are called "open source" because they are free and anyone can use them. And because they're open source, lots of really smart people from all over the world can work together to make them even better!
OSGeo is a bit like having a really big toolbox that everyone can use. And when people have the right tools, they can do amazing things to make the world a better place.