"Water is also becoming scarce for some families. The small ponds they use as a water supply are drying up and they're having to walk to bigger ponds to carry water home.
"The knock-on health effects of having such a limited water supply are huge.
"A sack of rice costs $50 - a very small price to pay to save a life and there's no doubt that it would."
The trust support eight schools in rural, poverty-stricken areas in southern Cambodia.
She said teachers already have problems with malnourished children having difficulty concentrating, having dizzy spells, and frequently fainting. "We're particularly involved with enabling girls to continue their education. Poor, uneducated rural families are vulnerable targets for the "agents" who come from the city looking for young girls to buy for slavery and prostitution."
"One hundred per cent of all donations goes to Cambodia - we don't take any administration fees or expenses."
To donate money for rice, visit cttnz.org.nz.