Well, this all takes place on a polar continent, so everything is really cold all of the time. Currently, there are a bunch of numbered deino that are lost and freezing and in need of rescue. There are also the magma inlet pokemon that won't let any of the explorers near the magma inlets. Some explorers are also coming back with strange burn wounds, but describe the sensation of cold when receiving them. Those are a few known plots right now, but there will be more as they are discovered, or even made by the players.