#peak_milk happened in 2004, #peak_soybeans in 2009, and #peak_chicken in 2006. Rice peaked in 1988.
▻http://www.fastcoexist.com/3041927/the-world-has-reached-peak-chicken-peak-rice-and-peak-milk
A new study published in Ecology and Society explains that 21 key resources that humans rely on—mostly food—have already passed their peak rate of production.
Ecology and Society: Synchronized peak-rate years of global resources use
▻http://www.ecologyandsociety.org/vol19/iss4/art50