They came to japan by North Korea
Answer:
Thule Air Base, or Thule Air
Base/Pituffllk Airport (IATA:
THU, ICAO: BGTL), is the United
States Space Force's
northernmost base, located
1 ,207 km (750 mi) north of the
Arctic Circle and 1 ,524 km (947
mi) from the North Pole on the
northwest coast of the island
of Greenland.
Breathing Air releases Carbon into the air
The carbon is probably getting absorbed into the air and soil