Introductory example CMIP

# Overview

This is a brief "scoping" review of finding articles and terms relevant to CMIP (https://en.wikipedia.org/wiki/Coupled_Model_Intercomparison_Project ).

## strategy

* Search EPMC for "CMIP" and related terms. (`getpapers`)
* retrieve all articles and a subset (cmip200)
* create an *ad hoc* dictionary of terms related to CMIP

## locations


