Currently harmonisation fails if 2010 is missing, this PR fixes that.
[x] Tests added
[ ] Documentation added
[ ] Example added (in the documentation, to an existing notebook, or in a new notebook)
[ ] Description in CHANGELOG.rst added (single line such as: (`#XX <https://github.com/iiasa/climate-assessment/pull/XX>`_) Added feature which does something)
Currently harmonisation fails if 2010 is missing, this PR fixes that.
CHANGELOG.rst
added (single line such as:(`#XX <https://github.com/iiasa/climate-assessment/pull/XX>`_) Added feature which does something
)