The existence of a dust layer in the stratosphere at about 60,000 feet in altitude has been confirmed by research conducted by two scientists at the High Altitude Observatory (HAO) in Boulder. The research was carried out by Dr. Gordon A. Newkirk, Jr. and Dr. John A. Eddy. As a result, Newkirk an... Show moreThe existence of a dust layer in the stratosphere at about 60,000 feet in altitude has been confirmed by research conducted by two scientists at the High Altitude Observatory (HAO) in Boulder. The research was carried out by Dr. Gordon A. Newkirk, Jr. and Dr. John A. Eddy. As a result, Newkirk and Eddy have concluded that the number of meteoric particles floating in the atmosphere below 80,000 feet is so small that it is difficult to imagine that they would have any significant effect on the weather. Show less