The rising environmental carbon dioxide levels will significantly increase mental and physical health problems in the global population.

Snow cleaning of the world's largest telescope mirrors was an impressive sight. The optics technicians would climb into a huge telescopic boom lift and spray immense clouds of cold carbon dioxide snow and gas onto the ten meter diameter mirrors high above the floor indoors. It would cause some of the accumulated dirt to magically fall off, leaving it less dirty.

During my time in high altitude astronomy, I routinely witnessed workers breathing medical oxygen, industrial carbon dioxide, nitrogen and helium gas as part of their daily work routine.

I consider myself fortunate that I was an electronics engineer and not an optics engineer, as it was the optics team that was discharging massive amounts of carbon dioxide into the indoor environment at the Mauna Kea Observatories.

I avoid large groupings of people due to the high carbon dioxide environments they cause and the unnatural electromagnetic radiation emissions from their cell phones.