Bhutan, after prioritizing happiness, now faces an existential crisis

The tiny kingdom of Bhutan introduced Gross National Happiness to the world in the 1970s .

A quarter of young Bhutanese are leaving the country in record numbers.

Prime Minister Tshering Tobgay : "It is an existential crisis" The country is one of the only countries in the world to be carbon negative.

Bhutan is facing what is known in the country as a crisis of outmigration.

A devastating 9% of the country's population, most of them young people, have left Bhutan .

The king is creating a new city in southern Bhutan with different rules from rest of country.

The new city will have neighborhoods nestled between rivers, connected by unusual bridges.

He visited the country last month to bring his vision for the new Gelephu Mindfulness City and the future of Bhutan to packed stadiums of more than 20,000 Bhutanese who live in Australia now, all in the hopes of one day luring them back home. "If we succeed, we can show that you can create a city that does not displace nature, that is anchored and rooted in the local heritage and culture, and that still allows for growth and prosperity to happen," Ingels said. "That is a struggle a lot of places in the world are struggling with.".