Air travel is bad for the planet, which is why climate activist Greta Thunberg is sitting on a boat, sailing across the Atlantic in a zero-emissions yacht to speak at the UN’s climate summit. That is also why France joined other European countries in adding an eco-tax to airline tickets, United Airlines is testing a biofuel, and JetBlue is investing in hybrid planes and ecofuels. And it’s also why Lufthansa is offering carbon offsets and a new climate-friendly fuel for its planes—at least for customers who can afford it.
However, feeling better about flying comes at a steep price. Per the AP, signing up for SAF tacks on a whopping 374 euros ($414) for flights from Frankfurt to New York. If you want to save the planet, but also your savings, passengers who opt to donate toward a reforestation measure instead can pay less—adding a 165 euro surcharge for the same flight. Neither option is particularly cheap, but that just might be worth it for customers who want to ease their climate conscience.