adding check duplicates Rmd, md
need to align rasters in model/GL-NCEAS-Halpern2008 to new regions:

Switching to ArcGIS on Win, b/c in R on Mac:
```
z = zonal(r,  rgn_offshore_mol, progress="text")
Error in compareRaster(c(x, z)) : different extent
```
Could still use:
```
r_r = resample(r, rgn_offshore_mol, method='bilinear')
```
but very slow in R on Mac with rasters remote on neptune.