Risotto Bias<p>okay, so... the "bomb spike" is the graph of Carbon-14 relative to... C-12?</p><p>I guess I'm thrown off by units of pMC/percent. percent what?</p><p>globally: 50 tonnes<br>nuclear testing: 1.3 tonnes</p><p>ocean: most of it<br>soil/biosphere: the rest<br>atmosphere: 840kg</p><p>3,206,000,000,000 tonnes (CO2 in general) ... hold up I have to have my units wrong.... each ppm is supposed to be 7.82 gigatonnes and we've released 2400 gt max since 1850... does that mean it started at 806 gt CO2 in 1850 or did I mess that up?</p><p>is the graph relating a fixed baseline like 1950 or an ever changing %?</p><p><a href="https://tech.lgbt/tags/Science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Science</span></a> <a href="https://tech.lgbt/tags/ClimateChange" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ClimateChange</span></a> </p><p>also, the decrease is NOT due to decay, it's due to exchange w ocean/biosphere</p><p>like the Suess effect is just "carbon 14 gets diluted by human use of fossil fuels" (which seems depressing)</p><p>C14 is naturally produced in the stratosphere by cosmic ray neutrons at a base rate</p><p>nuclear power plants release C14 at night when plants aren't photosynthesizing</p><p><a href="https://tech.lgbt/tags/nuclear" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>nuclear</span></a> <a href="https://tech.lgbt/tags/globalwarming" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>globalwarming</span></a> <a href="https://tech.lgbt/tags/askscience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>askscience</span></a></p>