The cows eating charcoal to save the planet!
When cows fart, it puts a lot of methane gas into the atmosphere - which is a harmful greenhouse gas which contributes to global warming.
So now a project in Lincolnshire is hoping to reduce the impact of farm animals on the environment by getting them to eat a form of... charcoal!
Watch this video to find out how it all works!
Other cool ideas combating climate change: