Scientific literature has considered human population trends as “slow,” with fertility and mortality driving long term changes that are fully appreciable in generation-long periods, but the current exodus from war-ridden Ukraine to the rest of Europe or the acceptance of more than 1 million Syrian asylum-seekers in Germany in 2015 and 2016 show that our view of population change needs some updating.
Click here for original story, Why we think that demography is a slow thing, and why we are wrong
Source: Phys.org