a political scientist at the University of Colorado, Boulder, who studies disaster trends, said the Forum's report was "a methodological embarrassment" because there was no way to distinguish deaths or economic losses related to human-driven global warming amid the much larger losses resulting from the growth in populations and economic development in vulnerable (易受傷害的) regions.

Societies that cannot replace their populations discourage investment and innovation.

Fully developed, mature, post-industrial societies, such as those in Europe, characterised by stable or declining populations which are increasing in age

Until the early 1990s nobody much thought about whole populations getting older.