If you were to inject SO2 into the Northern Hemisphere, the models show, you would reduce storm activity in the North Atlantic — probably because the injection would put the tropical jet stream on a collision course with the Atlantic hurricane main development region. (globalpossibilities.org)
The thick blue line shows the projection using the full spatial gridded temperatures and confidence interval (5 — 16 — 84 — 95 %); magenta and black show the projections using only Main Development Region (MDR) and global average surface temperature. (skepticalscience.com)
A pronounced decline over the period 2005 - 2015 is identified in Atlantic major hurricane frequency, as well as in the Atlantic Multidecadal Variability (AMV), while an increase is identified in the vertical wind shear over the Atlantic hurricane main development region (gfdl.noaa.gov)