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.
Generally speaking, the time it takes to go from HIV infection to AIDS is around 5-10 years if no medical intervention is made. Differences in time can be due to any number of factors, including: the genetic strain of HIV a person has been infected with (some of which may be more or less virulent than others)