oxygen catastrophe

Etymology
. From the buildup of environmental oxygen, a toxic compound to the then existing life, causing a die-off of that anerobic life.

Noun

 * 1)  An event during the oxygenation event of Earth's past, where the level of free oxygen in the environment exceeds the tolerance levels of most extant anerobic life.
 * 2)  Such an event that theoretically occurs elsewhere, away from Earth.

Coordinate terms




Translations

 * French: catastrophe de l'oxygène / crise de l'oxygène


 * Chinese:
 * Mandarin: 大氧化事件
 * French: Catastrophe de l'oxygène / Crise de l'oxygène, Grande oxydation / Grande Oxydation / Grande oxygénation / Grande Oxygénation