https://www.vox.com/science-and-health/2017/8/28/16211392/10...This story has also been in the NYT, as I recall:
> Tomball, Texas, Public Works director David Esquivel told a local paper there this year that the Houston area had “two 500-year storms back to back”: over Memorial Day weekend of 2015 and early April 2016. That means that Hurricane Harvey constitutes the third “500-year” flood in three years.
Rare meteorological events do not correlate to large scale disasters, per se. They only reflect the probability of the underlying event happening in any given year. Imagine that your nearest creek "flooding" by 2 inches should only happen every thousand years, for example.
> We've got catostrophic storms going back every decade. Donna, Hugo, Andrew, Katrina, Harvey...none of this is new.
Aaaaand here's the fundamental confusion with those kinds of summaries: what is the difference between speed and acceleration?
We have always had bad weather. Having more bad weather than before, more frequently, is the issue. Climate change did not invent the hurricane. Climate change ensures our hurricanes will be bigger, more frequent, and more likely to combine with other larger, more frequent, weather systems. See Sandy, for example.