At least I bloody well hope they will have done:
Climate change may cause humans to become smaller as the planet continues to warm, according to a new study.
Scientists used more than 300 fossils to track how human bodies have fluctuated in size over thousands of years.
They found a clear link that people living in colder environments were larger, while people in warmer regions were smaller.
This trend continues today, the scientists add, with people in colder parts of the planet tending to be bigger than those in warmer places. For example, the average Dutch man is 6ft tall, whereas the average Indian man is just 5ft 5inches tall.
You’ve got to control for GDP. Which is a reasonable proxy for the adequacy of childhood nutrition. You know, stunting? That 6 inches shorter that the soldiers were than the officers in 1914?
As it happens the tropics tend to be the poor parts of the world these days…..