This question already has an answer here:
- Is it possible to kill all life on Earth? 21 answers
TO: [mailing-list:all-employees] CC: [mailing-list:quality-assurance], [mailing-list:facilities] BCC: [mailing-list:galactic-villains] Subject: Thought Experiment - removing all life from a planet
My Distinguished Employees;
I would like to take a moment to propose a thought experiment concerning our recent planetary project. The Viral Planet program was shuttered due to budget constraints, unfortunately, but it did produce excellent work from its team, as well as a number of off-shoot programs and opened the door to new challenges and opportunities.
I'd like to bring one of these challenges to the forefront. Would it be possible to devise a methodology, whether by artificial design or natural happenstance, that all life on a given planet could be removed without leaving remains such as corpses?
I understand that this has been done before by a friend of mine, but the effects were successfully undone by an independent organization dedicated to preserving the status quo. While I of course abhor the wanton destruction of all life throughout the universe, I can't help but wonder if there's a way to scale down that same effort to just a single target planet.
One could argue that acquiring the tools of the trade previously used to great effect would work in this regard, I would also remind that doing so would likely draw the attention of, and intervention by, the same organization mentioned above. So please constrain the methods of this thought experiment to non-supernatural and non-reality-altering avenues of pursuit.
To reiterate: I'm looking for a method to remove all life from a planet that does not impact the geographical or structural environment. In other words, the method may damage the atmosphere and boil the oceans, but must leave buildings, cities, and geographical landmarks unscathed.
Thanks for Your Attention,
B. B. Calamity
Chief Executive Officer
Intergalactic Engineering and Design
M E M O R A N D U M
From: Carl Llama
Date: June 5, 2019
Subject: Re: Rumors
In response to the rumors circulating the office after Mr. Calamity's email, I reached out to the CEO. He assures me that there is no intention of the results of this exercise to be available to outside organizations, that the methodology resulting from this exercise will never be used on Earth, and that no employee will be held accountable for any disaster that befell a world that suffered a fate reminiscent of this thought experiment.
This question is not a duplicate of this question because that one has as its criteria "before the end of 2025 to destroy all life on Earth within a 30-day period." This question specifies neither a constraining date (2025) or a timeframe of action (30 days).
Further, these two questions differ in regard to a specific constraint defined here and not in the other question:
without leaving remains such as corpses
Here is a link to a relevant Meta post about judging when answers may be duplicates of each other.