I am Swiss, and I think we should contribute as much as we possibly can, despite being a relatively small country without too much direct global impact. But I'm curious about the legal technicalities here (because IANAL): You can surely argue for a country having to better protect its own citizens through e.g. adaptations, but no matter how you look at it I don't think Swiss emissions can reasonably be viewed as a pr…
Also, Switzerland has increased their consumption-based emissions by over 38% since 1990 while in the same time frame countries like France has reduced by 15%, Germany reduced by 30%, UK reduced by 23%, EU27 reduced by 20%.