The Doctors Three
An Egg?! What sort of egg? What sort of creature? Brilliant.
They do understand, of course, that nuking the moon will also create even more damage? Oh, of course they don't; still, don't entirely blame humanity. There's a feral nature in a lot of the Universe is there not? Our own people have made some astounding decisions...
And yes. Clara made the decision? I'm sure, of course, she was with you when the decision was made...