At the time of the Iranian Revolution in 1979, the country had a population of 38 million. While the ousted Shah had been supportive of limiting population growth, his efforts were ineffectual, with population growing at 3.4 percent per annum.
What stops the Earth from looking like Pluto is energy from the Sun. The quantity and type of energy coming from the Sun varies over cycles that range up to 1,500 years long. The cycle we can see with our