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Many studies have tried to estimate the world's sustainable population for humans, that is, the maximum population the world can host. [5] A 2004 meta-analysis of 69 such studies from 1694 until 2001 found the average predicted maximum number of people the Earth would ever have was 7.7 billion people, with lower and upper meta-bounds at 0.65 and 9.8 billion people, respectively.
[50] [5] This suggests that 8 billion people may be sustainable for a few generations, but not over the long term, and the term ‘carrying capacity’ implies a population that is sustainable indefinitely. It is possible, too, that efforts to anticipate and manage the impacts of powerful new technologies, or to divide up the efforts needed to ...
They conclude: "recent predictions of stabilized world population levels for 2050 exceed several of our meta-estimates of a world population limit". [ 132 ] A 2012 United Nations report summarized 65 different estimated maximum sustainable population sizes and the most common estimate was 8 billion. [ 133 ]
The global population is expanding rapidly thanks to major advances in public health, but can the Earth sustain so many humans?
Extremely high material footprint levels among world’s richest 10% is destabilising the planet Earth’s population may peak at all-time high of about 9 billion in 2050s, research suggests Skip ...
Currently, 757 million humans live in the 101 largest cities; [41] these cities are home to 11% of the world's population. [41] By the end of the century, the world population is projected to grow, with estimates ranging from 6.9 billion to 13.1 billion; [41] the percentage of people living in the 101 largest cities is estimated to be 15% to 23 ...
By RYAN GORMAN Earth could be teeming with more than 12 billion humans by the end of the century, a new study has revealed. The world's human population currently stands at about 7.5 billion. A ...
The world population's growth to eight billion people in 2022 – up from five billion in 1987, six billion in 1999, and seven billion in 2011 – reflects positive developments across fields such as global health and poverty eradication.