The threat of famine and the battle for dwindling natural resources are increasingly being recognised as major factors in the exodus
Martina García grinds just enough maize kernels to make a handful of tortillas which she serves to her children and grandson for breakfast with a sprinkling of salt.
García, 40, must ration the family’s last few sacks of tiny corncobs after drought and prolonged heatwaves linked to the climate emergency devastated crops across Guatemala.
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