Environmental regulation stringency — emissions caps, standards, phase-out mandates, carbon pricing, renewable portfolio standards.
Bundestag approval of the Paris Agreement on climate change (adopted December 2015 under UNFCCC), deposited jointly with the EU instrument of ratification on 5 October 2016. Entered into force 4 November 2016. Committed Germany to EU-level nationally-determined contribution (-40% GHG by 2030 vs 1990 at signature; subsequently tightened to -55% then -65% under Klimaschutzgesetz revisions).
Per invariant 3, reforms are scored by what they did on each channel-separated axis, not by the party that enacted them. This fingerprint is how the policy-match engine finds historical analogues.
Explicit links are curated by the author. Inferred links are hypotheses in the library that test the same axes this policy moved — the framework's answer to "what does the data say about a policy like this?".
Ranked by axis-fingerprint overlap with this policy. Direction match bolded — those are the closest historical analogues. Shape of the match is what drives policy-outcome comparison, not the country or party label.