In this Decoder, correspondent Tiziana Barghini covers why changing demographics, increased life expectancy and outdated public policies may spell trouble for developed nations. Migration may be the solution.

Exercise: Using a word cloud generator or class participation tool like Mentimeter, have students contribute words that they think of when they hear the word “immigration” or “migration”. Create a word cloud with these words before reading the article as a class. Then, after reading the article, have students consider how their perspective on migration might have changed. Create a post-read word cloud and discuss what new insights students have learned from the article.