Predicting the shape of our future populations is vital for installing the infrastructure, welfare, and provisions necessary for society to survive. There are many opportunities and challenges that will come with the changes in our populations over the 21st century. In this new addition to the 21st Century Challenges series, Sarah Harper works to dispel myths and instead considers the future shape of our populations in light of demographic trends in fertility, mortality, and migration, and their national and global impact.

Harper concludes with an analysis of global challenges we must plan for such as the impact of climate change and urbanization, and the difficulty of feeding 10 billion people, and considers ways in which we can prepare for, and mitigate against, these challenges.

Here is a video of Dr. Sarah Martin giving a lecture on her book:

https://www.youtube.com/watch?v=el7_v86HQcc