inventions

so, after learning about awnings and how they provide degrees of totally free cooling in the summer, but need to be rolled down in the winter when you want that heat

https://www.youtube.com/watch?v=uhbDfi7Ee7k

I started to imagine some kind of technology that could be widely deployed to offset global warming somewhat, huge, solar-powered sun-shades that would block sunlight in the summer but not in the winter, cheap to deploy en-masse

and then, having discovered the concept of "trees", I figured I probably wasn't going to make it as an inventor