Er det rart at ting går dårlig når det er sånne holdninger og prioriteringer blant de som jobber med trafikksikkerhet? Det er bare så demotiverende!
Er det rart at ting går dårlig når det er sånne holdninger og prioriteringer blant de som jobber med trafikksikkerhet? Det er bare så demotiverende!
Next week I'll be presenting my work about #seaweed in #NuclearWinter (https://zenodo.org/record/7578860) at #EGU23. Just drop me a message if you are interested in talking about this.
I am also looking for people who are knowledgeable about very large #VolcanicEruption (#VEI 7+). If you know somebody who is also at EGU and works on this, any hint would be appreciated.
Abrupt sunlight reduction scenarios such as a nuclear winter caused by the burning of cities in a nuclear war, an asteroid/comet impact or an eruption of a large volcano inject large amounts of particles in the atmosphere, which limit sunlight. This would decimate agriculture as it is practiced today. We therefore need resilient food sources for such an event. One promising candidate is seaweed, as it can grow quickly in a wide range of environmental conditions. To explore the feasibility of seaweed after nuclear war, we simulate the growth of seaweed on a global scale using an empirical model based on Gracilaria tikvahiae forced by nuclear winter climate simulations. We assess how quickly global seaweed production could be scaled to provide a significant fraction of global food demand. We find seaweed can be grown in tropical oceans, even after nuclear war. The simulated growth is high enough to allow a scale up to an equivalent of 70 % of the global human caloric demand (spread among food, animal feed, and biofuels) in around 7 to 16 months, while only using a small fraction of the global ocean area. The results also show that the growth of seaweed increases with the severity of the nuclear war, as more nutrients become available due to increased vertical mixing. This means that seaweed has the potential to be a viable resilient food source for abrupt sunlight reduction scenarios.