Greta Thunberg and ‘Flight Shame’ Are Fueling a Carbon Offset Boom

Campaigning by climate activist Greta Thunberg and filmmaker-naturalist David Attenborough is persuading pollution-conscious fliers to try and mitigate the environmental damage caused by their flights.

Sales of so-called carbon offsets are soaring: Myclimate, a Swiss nonprofit whose clients include Deutsche Lufthansa AG, reported a five-fold uptake in its credits in a year. At Ryanair Holdings Plc, Europe’s largest discount carrier, the number of customers making voluntary offset payments has almost doubled in 18 months.