Hot air
SIR – We face a crisis due to a shortage of carbon dioxide – a gas emitted when we exhale (report, June 23).
Might I suggest installing an extraction pipe in the House of Commons? Dr David Cottam
Montauriol, Lot-et-garonne, France
SIR – We face a crisis due to a shortage of carbon dioxide – a gas emitted when we exhale (report, June 23).
Might I suggest installing an extraction pipe in the House of Commons? Dr David Cottam
Montauriol, Lot-et-garonne, France