Kim Jong-un and Climate Change

Am I right in wondering where the contingent of concerned climate change people heading over to North Korea is? After all it would seem to me that detonating thermo Nuclear devices might effect CO2 levels. Wouldn't one think there might be a mass movement of the climate concerned to persuade Kim Jong-un about his environmental indescretions? It seems to me, who am no scientist and yes, admittedly woefully ignorant of the progress or regress of climate towards either eventual boiling or freezing, that the North Korean dictator may indeed be more influential in effecting a carbon footprint than even a West Virginia coal burning plant.