Data correlation and model simulations indicate that solar variability and volcanic activity are likely to be leading reasons for climate variations during the past millennium, before the start of the industrial era. (ipcc.ch)
In fact, this factor is one leading reason why young adults normally do not have scores as high as their parents. (lendedu.com)
«The first ever viable religious conception capable of leading reason, by faith, to observable consequences which can be tested and judged is now a reality. (religion.blogs.cnn.com)