Rice age?

Apparently you don't need to flood rice fields.

It's a technique that emphasizes growing fewer, but more robust rice plants.

It's met with opposition from "experts", but a million rice farmers are using the system. (And they're the ones whose livelihood depends on the system working. I'm inclined to believe they know if they're getting better yields or not.) This saves on water use, seed costs, and methane production. Since methane is a greenhouse gas, this is a meaningful change.

Of course, if the greenhouse gas is all that's staving off global cooling, we may get an ice age to go with our rice age.