doomer

Etymology
. The more recent sense was popularized via a meme, “30 Year-Old Boomer”. The derivations of which are other words that end in -oomer, describing various personality types.

Noun

 * 1) One who believes that petroleum depletion will inevitably lead to a severe recession or depression, followed by a Malthusian catastrophe.
 * 2)  Someone who is apathetic or has a negative prospect towards the world, especially in relation to climate change.
 * 3)  One who, or that which, dooms.
 * 1)  Someone who is apathetic or has a negative prospect towards the world, especially in relation to climate change.
 * 2)  One who, or that which, dooms.
 * 1)  One who, or that which, dooms.
 * 1)  One who, or that which, dooms.
 * 1)  One who, or that which, dooms.