Greenhouse gases can be removed from the atmosphere by various processes, as a consequence of: 1  a physical change (condensation and precipitation remove water vapor from the atmosphere). 2  a chemical reaction within the atmosphere. 3  a physical exchange between the atmosphere and the other compartments of the planet.
What we can say is that the vast majority of people infected with HIV will develop AIDS sometime during their life (an average of 10 years or more after infection), and with early intervention and treatment, they could potentially live with AIDS for many years more.
By comparison, the study found that a 20-year-old person without HIV lived an additional 65 years, for a total of 85. So, in this study, overall, HIV-positive folks were found to live about eight years less than HIV-negative folks as of 2011.