[Well it also helps that he went through this whole "the world is destroyed and everyone is dead" thing once before. He JUST got over having a breakdown about that, he's not about to do it a second time within 24 hours. Especially since...this is different. They were told from the start that they could fix it. And even if that's a lie...well. What did they have to go back to, really?]

I...definitely didn't see any really big pine trees. [He would have remembered something like that.] Hm...do you know for a fact that the Director has destroyed the ones you recovered? Just out of curiosity.