A reader has submitted a question to a long-running series, asking if filling all vehicle tyres globally with CO2 would lock up enough carbon to significantly reduce atmospheric levels. The question, posed by Chris Coldwell from Lancaster, also raises concerns about potential other issues, including the carbon cost associated with trapping the CO2 for this purpose.
The series, which invites readers to answer other readers' questions, focuses on an intriguing scientific question related to the climate emergency. A selection of answers to this question, along with new questions, is expected to be published next Sunday.