Nepal, June 28 -- In the quiet of the morning, Kanta Rajali carefully places two bowls of rice on the stove. She knows they will not be enough to satisfy her family of four. But she has to save two more bowls of rice for dinner, when she again will face the challenge of feeding her sick husband, her disabled older son and her sick younger son.

"I have learned to live on half a stomach full so that my husband and children can feel full," says Rajali, 50.

Tomorrow, the same struggle will repeat itself. Since her marriage at age 15, Rajali has cultivated crops including maize, mustard, barley and potatoes to help her family survive. However, due to changes in seasonal patterns, yields have decreased and the harvest only lasts about four mo...