"You freeloading penguins had better make this up to us."
Nope! The best possible outcome is that all the other countries stick to their promise to stop using fossil fuels except for you. If you keep using gasoline to power your coffee maker and all those other countries do the hard work of developing cars with stupid little windmills all over them, everyone gets to keep living here, and your country has a huge economic advantage over the rest of them.
So, assuming that everyone else holds up their end of the bargain, the best possible outcome for your country is to screw them all over.
The worst possible outcome overall is that you do the right thing and nobody else does. You stick to the agreement and take the economic hit of weaning your country off of fossil fuels, but all the other countries are secretly making a bunch of jerk-off hand motions to each other during your conference calls. You get poorer and the Earth keeps dying. That's an F- for you.