48. What is Geoengineering and how can it help with climate change, and another US original – DACOR

Geoengineering can be another weapon in the fight against climate change. Geoengineering refers to large-scale schemes for intervention in the earth’s ocean, soil and atmosphere with the aim of reducing the effects of climate change. There are two broad categories of geoengineering – Carbon Geoengineering focused on carbon dioxide removal (CDR) and Solar Geoengineering centered around solar radiation management (SRM). SRM can be done by either deploying sulfates or diamond dust in the upper atmosphere to deflect sunlight. Also, SRM can be done by spraying sea water into the atmosphere to create marine clouds. On the CDR front there are many different ways to pull carbon dioxide out of the atmosphere and sequestering it in various storage systems – like concrete. Lets hope that we can use all the tools at our disposal to reduce the impacts of climate change.

DACOR was one of the original five US manufacturers of scuba diving equipment. DACOR is short for The Davidson Corporation started by Sam Davidson Jr. in 1953. Sam was a US Marine who became interested in the underwater world when stationed on Guam in World War II. When Sam got back from the war he decided to build his own regulator. Along the way, he was able to sell 300 to a department store chain and his company was formed. DACOR was an innovator in regulator design and development along with all type of scuba equipment. In 1980 they introduced a dive computer – the DACOR Dive Computer (DDC). Sam died in 1987 and his wife Joan took over until selling the company to Mares in 1998. You can see all of their innovative ideas by taking a look at their old catalogs (check out CG-45 website)