Package check result: NOTE

Check: CRAN incoming feasibility, Result: NOTE
  Maintainer: ‘Robert J. Hijmans <r.hijmans@gmail.com>’
  
  Found the following (possibly) invalid URLs:
    URL: https://www.ngs.noaa.gov/PUBS_LIB/inverse.pdf
      From: inst/doc/geosphere.pdf
      Status: Error
      Message: Could not resolve hostname [www.ngs.noaa.gov]:
        Could not resolve host: www.ngs.noaa.gov

No changes to worse in reverse depends.