<human>:  When did the Third World food crisis start?
<bot>: The Third World food crisis began in the 1970s and 1980s. It was caused by a combination of factors, including poor agricultural practices, climate change, and population growth. The Third World food crisis led to widespread hunger and malnutrition, which in turn led to deaths and disease. The crisis was most severe in Sub-Saharan Africa, but it also affected other regions of the world.