In the third option, it's similar to the second, you're going to continue to go on your trip, but in this case, you're going to pay somebody to physically remove three tonnes of carbon from the atmosphere on your behalf.
La tercera opción es similar a la segunda. Deciden continuar con el viaje, pero en este caso, se le paga a alguien para que elimine las tres toneladas de carbono de la atmósfera por Uds.