Were you intending to use those words ... "prepared" and "embrace"?

Did you instead mean to write "is the world headed for a global famine"? That's a completely different question.

If the world is prepared for a global famine, then there is no famine, as famine is defined as "severe and prolonged hunger in a substantial proportion of the population of a region or country." Thus being prepared for it means, I would think, means engaging all means available to withstand such a scenario. The world is not prepared. Never has (as starvation happens in a number of parts of the world today), but much of the world is unprepared for "global famine".

And as far as embrace, ... the Oxford dictionary on that shows: "accept or support (a belief, theory, or change) willingly and enthusiastically." While the world may accept that a global famine is coming and that there are limits to what the responses will be, ... the world isn't supporting it "willingly and enthusiastically".