Carbon offsetting is essential to tackling climate change
WHEN COMPANIES that depend on emissions, such as easyJet, an airline, use offsets sold on private “over the counter” markets to claim carbon neutrality it is hard not to be reminded of the indulgences sold by the medieval Catholic church that helped sinners to go on sinning guilt-free. But the recent emphasis on “net zero” economies has made offsets central to climate-change plans. In a net-zero economy adding carbon dioxide, or another greenhouse gas, to the atmosphere is only allowed if an equivalent amount of greenhouse gas is removed from it.
