Washington, Apr 5 (ANI): Global population data spanning the years
from 1900 to 2010 have enabled researchers to predict that the number of
people on Earth will stabilise around the middle of the century, a
report has said.
The results, obtained with a model used by a
research team from the Autonomous University of Madrid, coincide with
the UN's downward forecasts.
According to United Nations'
estimates, the world population in 2100 will be within a range between
15.8 billion people according to the highest estimates, high fertility
variant- and 6.2 billion according to the lowest, low fertility variant,
a figure that stands below the current 7 billion.
A mathematical
model developed by a team from the Autonomous University of Madrid (UAM)
and the CEU-San Pablo University, both from Spain, seems to confirm the
lower estimate, in addition to a standstill and even a slight drop in
the number of people on Earth by the mid-21st century.
The
population prospects between 1950 and 2100 provided by the UN were used
to conduct the study, published in the journal 'Simulation'.
Mathematical equations that are used in scientific fields, such as condensed matter physics, were then applied to this data.
The
model's S-shaped sigmoid curve reflects this situation with an
inflection point in the mid-1980s when the speed at which the population
is growing starts to slow down until it stabilises around 2050.
The data also reflected the downward trend in the UN's series of prospects.
"Overpopulation
was a spectre in the 1960s and 70s but historically the UN's low
fertility variant forecasts have been fulfilled," Felix F. Munoz, UAM
researcher and co-author of the project. highlighted. (ANI)
No comments:
Post a Comment