Hamilton has repeatedly discussed environmental issues on social media, at conferences, in interviews and documentaries. In 2019, Hamilton asked Mercedes-Benz to swap animal-derived leather in the company's models worldwide: "I am trying to push for sustainability with my team. I am trying to get more involved in Formula 1 and be more conscious"." Mercedes-Benz is a huge organisation. I have got a phone call with the CEO later today to discuss how we can work on getting rid of all the leather supplied to the cars. That is something I want to be involved in". In 2020, Hamilton announced that he was aiming to be carbon neutral by the end of the year, saying "I don't allow anyone in my office, but also within my household, to buy any plastics. I want everything recyclable, down to deodorant, down to toothbrush, all these kinds of things ... I'm trying to make as much change as I can in my personal space. I sold my plane over a year ago. I fly a lot less now. I'm trying to fly less through the year".