Coincidentally, the hurricane (as a tropical low) appeared about the same time as a new paper in PNAS, about how rising sea levels and changing tropical cyclones are increasing the risk of flooding in New York City. In the abstract, the authors write how "flood risk has greatly increased for the region; for example, the 500-y return period for a ∼2.25-m flood height during the pre-anthropogenic era has decreased to ∼24.4 y in the anthropogenic era." 500 years to 24.4 years is a huge change. You can read about the paper at The Carbon Brief, where Robert McSweeney writes:
Rising sea levels and changing tropical cyclones are pushing New York City coastal floods to new heights, says a study published today.
Floods hitting the city are now more than a metre higher than before humans had an influence on the climate, the research shows, increasing the risk of coastal defences being overwhelmed.
Read the full article - it's detailed and well written.
- Climate change is raising the risk of coastal floods in New York City, study finds - article by Robert McSweeney at The Carbon Brief.