mongoose-global looks like an unmaintained project. It was last updated 3 years ago, and there is no repo listed in the npm page so I can’t check what’s the module is about. I suggest to remove it since it’s likely to be very outdated by now, or contain security holes.
From your npm list output, you should be able to remove mongoose-global using the standard npm uninstall command. You might also want to check out the npm prune command to remove extraneous packages.