There is a scientific gathering every year, on January 20th, at which the world researchers´ community balances the impact of human actions on the planet, then they translate this impact into how much time we have left to revert the destructive tendencies.
The time is calculated in relation to Earth’s estimated age and the metaphorical clock is called the Doomsday Clock.
The closest it gets to midnight the worst is the scenario for the planet´s recovery and if it passes midnight, it means that a chain of unbalanced natural catastrophes with unprecedented impact on life is put into action, a process with no chance to be reversed .
So you might think “what time is it now?” Warning: it’s a hundred seconds to midnight!