Recall that atoms are the basic building blocks of matter.
Given current emissions trends, fossil fuel emission-driven artificial “aging” of the atmosphere is likely to occur much faster and with a larger magnitude than previously expected.
That is, if you had a solid block of radium, half of it would decay into other elements in 1,600 years.
In another 1,600 years, half of that would decay, and so on until it was all gone.
Scientists use a technique called radiometric dating to estimate the ages of rocks, fossils, and the earth.
Many people have been led to believe that radiometric dating methods have proved the earth to be billions of years old.