Given working class wages have been slowly declining in real value since the late 1960s, it's understandable that the stress that causes would lead to the effects identified.

We're on the downward slope of a one time pulse in stupendously cheap and easy to reach fossil fuels. We're also running out of easy to reach groundwater resources.

If the grown ups among us don't take over and start steering things in the right direction, we're headed towards civilizational collapse.

Reality is depressing, and apparently this study confirms it showing up in our language.