FAO says global supply of terrestrial animal source food has risen rapidly since 1961.
Industry representative says rainfall patterns and low drought risk support production outlook.
UN report warns extreme heat increasingly threatens food systems, crop yields and livelihoods.
Expert urges incentives for drip irrigation and water-efficient methods, calls for standardized water accounting across agriculture, industry, civil use.
Product developed from 15 years of research at Sabanci University reduces irrigation water use by up to 50%, boosting agricultural productivity by 25%.