Many big cities "puff" out a CO cloud that will come and go. On the bottom left there's a time visualization that you can play with. Yeah its NASA's MOPITT sen

Many big cities "puff" out a CO cloud that will come and go. On the bottom left there's a time visualization that you can play with. Yeah its NASA's MOPITT sensor on the Terra satellite https://www.nasa.gov/mission_pages/terra/spacecraft/index.html https://www.nasa.gov/mission_pages/terra/spacecraft/index.ht...