As I see it, humanity needs to reduce its impact on the Earth urgently and there are three ways to achieve this: we can stop consuming so many resources, we can change our technology and we can reduce the growth of our population.
Sir David Attenborough, naturalist and broadcaster
In 1973 the world population was estimated 4 billion. Half of what it is in 2022.
In 1973 China had the biggest population (880 million), followed by India (597 million), the United States of America (207 million), Russia (132 million). Japan, Brazil, Germany, Bangladesh and Pakistan complete the top 10.