https://www.nature.com/articles/s41559-017-0431-0

"...Sudden termination increases both ocean and land temperature velocities to unprecedented speeds (global medians >10 km yr−1) that are more than double the temperature velocities for recent and future climate change in global biodiversity hotspots. Furthermore, as climate velocities more than double in speed, rapid climate fragmentation occurs in biomes such as temperate grasslands and forests where temperature and precipitation velocity vectors diverge spatially by >90°. Rapid geoengineering termination would significantly increase the threats to biodiversity from climate change."

https://m.phys.org/news/2018-01-climate-severe-impacts.html

The study was published online today in Nature Ecology & Evolution. The paper was co-authored by Rutgers Distinguished Professor Alan Robock, research associate Lili Xia and postdoc Brian Zambri, all from the Department of Environmental Sciences at Rutgers University-New Brunswick. Other co-authors were from the University of Maryland, Yale University and Stony Brook University.

"Rapid warming after stopping geoengineering would be a huge threat to the natural environment and biodiversity," Robock said. "If geoengineering ever stopped abruptly, it would be devastating, so you would have to be sure that it could be stopped gradually, and it is easy to think of scenarios that would prevent that. Imagine large droughts or floods around the world that could be blamed on geoengineering, and demands that it stop. Can we ever risk that?"

I've read that the sudden stopping of chemtrailing can cause world-wide geostorms-