A reader from Lancaster, Chris Coldwell, has raised an intriguing environmental question: if every vehicle on Earth had its tyres inflated with carbon dioxide instead of air, would that lock away enough carbon to make a meaningful dent in atmospheric CO2 levels? And, just as importantly, would there be hidden drawbacks — such as the energy and carbon cost of capturing and compressing the gas before it ever reaches the tyre?
The question touches on broader debates about carbon capture and storage, and whether everyday objects could double as carbon sinks. It also invites readers to weigh in with their own calculations or alternative ideas.
Readers are encouraged to post their answers or submit new questions to the provided email address. A selection of the best responses is expected to be published next Sunday.