[jshevek]

I was able to access it, maybe they were breifly overwhelmed?

Edit: If you still can't access it for some reason here is a direct link to the PDF:

https://nca2018.globalchange.gov/downloads/NCA4_2018_FullRep...

And here is the first paragraph:

"Summary Findings

These Summary Findings represent a high-level synthesis of the material in the underlying report. The findings consolidate Key Messages and supporting evidence from 16 national-level topic chapters, 10 regional chapters, and 2 chapters that focus on societal response strategies (mitigation and adaptation). Unless otherwise noted, qualitative statements regarding future conditions in these Summary Findings are broadly applicable across the range of different levels of future climate change and associated impacts considered in this report."