Letters to todays Times: Councillor Jenny Jones of the Green Party Group on the London Assembly writes “In London alone, homes produce enough CO2 every year to fill almost seven million hot air balloons.”
Why hot air balloons? you don’t use CO2 in hot air balloons because CO2 is heavier than air. Might it be to give a suggestion of unbearable heat? Why not enough CO2 to create an iceberg of incredibly cold frozen dry ice with a surface temperature of -78.5 degrees centigrade?