lol no
Covers five studies
- a 2018 1500kt exchange between India and Pakistan,
- this 2014 1500kt between India and Pakistan,
- a 2008 study of a full nuclear exchange between the US, Russia and China (including all the tac nukes - "cry havoc and unleash the dogs of war)
- a 2019 followup study of the full nuclear exchange,
- and this mammer-jammer from Nature Food from August 2021 which looks at crop reductions from a 1500kt exchange, a full 400MT exchange and four intermediate points.
The last one comes with graphs and tables. One interesting thing they do is they break "available calories" down by "what it looked like in 2013" "what it would look like in 2013 if there were no international trade" and six flavors of "what it would look like if there were no international trade and we scorched the sky." It could be argued that the "Russia" row is already apt - from 3400 kcal/day to 2600 kcal/day just by dissolving trade.
you are now aware that in 2013, Xi Jinping agreed to retaliate against any power nuking Ukraine