The long-running series in which readers answer other readers’ questions considers whether there is sufficient global physical capacity for all our discarded and worn-out purchases • This week’s question: If all car tyres were filled with CO2, would this cut atmospheric carbon significantly? If consumer capitalism continues at its current rate, will we reach a point at which there is literally no space left on Earth for all the stuff that has been created? Alex Robinson, Alnwick, Northumberland Send new questions to nq@theguardian.com. Continue reading...