Sun Day is a day of action on September 21, 2025, celebrating solar and wind power, and the movement to leave fossil fuels behind.
Solar energy is now the cheapest source of power on the planet – and gives us a chance to actually do something about the climate crisis. But fossil fuel billionaires are doing everything they can to shut it down.
We will build, rally, sing, and come together in the communities that we need to get laws changed and work done.
The amount of carbon dioxide in the air was roughly 335ppm. As of 2025 it is 427ppm, but check here for daily measures.
The context was that there were fierce debates within America about what “paths” should be taken, nuclear, coal, solar, etc. And this is just a cracking cartoon that does a really useful piece of work in explaining what’s going on.
What do you think? Does this pass the ‘so what?’ threshold? Have I got facts wrong? Interpretation wrong? Please do comment on this post, unless you are a denialist, obvs.