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Analysis

Cohesion

All roll calls · whole term, 16 Jul 2024 – 26 Sept 2026 · topic Climate & environment (model-assigned) · political groups · per month · abstentions counted

How united do the groups vote — over time, and on the votes of each committee or topic?

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Period Term202420252026Last 6 months
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Cohesion over time

Agreement Index per month, from 0 (evenly split) to 1 (all voted the same). A vote counts for a bloc when at least 10 of its members and a third of its seats voted; a gap is a period with fewer than 20 votes counted.

Cohesion of the groups per month, Sept 2024 to Sept 2026: Agreement Index from 0 (evenly split) to 1 (all voted the same).

Sept 2024 → Sept 2026; each panel highlights one series, the others faint behind it.

Dashed: a period with fewer than 20 votes counted (no value) between two that have one.

Data as a table
Agreement Index per period (0 = evenly split, 1 = all voted the same), with the votes counted in it. — : fewer than 20 votes counted in the period (a vote counts for a bloc when at least 10 of its members and a third of its seats voted).
PeriodThe LeftGreensS&DRenewEPPECRPatriotsESN
Sept 20240.8822 votes0.9822 votes0.9522 votes0.9322 votes0.8922 votes0.8322 votes0.7722 votes0.7822 votes
Nov 20240.9926 votes0.9926 votes0.9826 votes0.8526 votes0.8226 votes0.8226 votes0.8626 votes0.9526 votes
Dec 2024—2 votes—2 votes—2 votes—2 votes—2 votes—2 votes—2 votes—2 votes
Apr 20250.9331 votes0.9331 votes0.9231 votes0.9031 votes0.9131 votes0.9631 votes0.8031 votes0.9231 votes
May 20250.9460 votes0.9860 votes0.9360 votes0.9560 votes0.7760 votes0.8860 votes0.8560 votes0.9360 votes
Jun 20250.8934 votes0.8834 votes0.9234 votes0.9634 votes0.9234 votes0.9234 votes0.7434 votes0.9134 votes
Jul 20251.0037 votes1.0037 votes0.9937 votes0.9537 votes0.7237 votes0.8137 votes0.6237 votes0.8837 votes
Sept 20250.9533 votes0.9933 votes0.9633 votes0.9833 votes0.9333 votes0.8333 votes0.9433 votes0.9033 votes
Oct 20250.9745 votes0.9945 votes0.9745 votes0.9145 votes0.7945 votes0.8545 votes0.8045 votes0.9145 votes
Nov 20250.9777 votes0.9677 votes0.9777 votes0.8977 votes0.7977 votes0.9877 votes0.9177 votes0.9177 votes
Dec 2025—10 votes—10 votes—10 votes—10 votes—10 votes—10 votes—10 votes—10 votes
Feb 2026—2 votes—2 votes—2 votes—2 votes—2 votes—2 votes—2 votes—2 votes
Mar 2026—12 votes—12 votes—12 votes—12 votes—12 votes—12 votes—12 votes—12 votes
Apr 20260.8728 votes0.9828 votes0.7628 votes0.7328 votes0.8428 votes0.9128 votes0.7828 votes0.8628 votes
May 20260.9535 votes0.9935 votes0.9735 votes0.9335 votes0.7935 votes0.8635 votes0.8435 votes0.8735 votes
Jun 20260.9321 votes0.9621 votes0.9421 votes0.8821 votes0.9221 votes0.8021 votes0.8421 votes0.8121 votes
Jul 2026—11 votes—11 votes—11 votes—11 votes—11 votes—11 votes—11 votes—11 votes
Sept 20260.9133 votes0.9733 votes0.9733 votes0.9333 votes0.8533 votes0.8733 votes0.8933 votes0.9533 votes
Whole period0.940.970.940.910.830.880.830.90
Votes considered519519519519519519519519

Over the whole selection

Each group’s Agreement Index over every vote in the selection where enough of its members voted.

Cohesion: the Agreement Index (0–1) over the votes counted — votes where at least 10 members and a third of the seats voted; — : fewer than 20 such votes. Seats: members now. Order as the backend lists the blocs, not a ranking.
GroupCohesionVotes countedSeats
The Left 0.9451944
Greens 0.9751953
S&D 0.94519135
Renew 0.9151978
EPP 0.83519184
ECR 0.8851984
Patriots 0.8351985
ESN 0.9051927

The tables by committee and by topic are computed over a whole period: choose Whole period.

About these figures

What was counted, what was left out, and how.

  • 519 votes considered (all roll-call votes matching the filters; scope).
  • 23 of 87 decisions in the period had no final vote recorded by name (a show of hands or a count without names) and cannot be measured.
  • Cohesion is the Agreement Index: 1 when every voting member took the same position, 0 when the bloc split evenly three ways (method). A bloc counts on a vote only when at least 10 of its members and a third of its seats voted; the non-attached have no group cohesion.
  • Months are offered for all roll calls only, and a month needs at least 20 votes.
  • Each member is counted in the group they belonged to on the day of the vote (group at the date).
  • Roll calls are not a random sample: final votes on laws are recorded by name, most other roll calls because a group asked for it. A group’s line is inferred from its members’ votes; the Parliament publishes no whip.
  • Methods: Cohesion (Agreement Index) v1, Final votes and all roll calls v1, Group at the date of the vote v1.
  • Data as of 26 Sept 2026, 03:32 UTC (data stamp 579b2832c723, code 6d4005c55bde; what the stamp is).
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Sources & citation

Where the facts on this page come from, and how to cite it.

Data source
Licensed CC BY 4.0.
Data version
data version 579b2832c723 (26 Sept 2026) · methods: group-at-date v1, participation v1, abstention v1, loyalty v1, against-clear v1, cohesion v1, agreement v1, group-agreement v1, winning-side v1, similar-votes v1, scope v1, data-version v1 · methods
Retrieved
26 September 2026

Cite as

EU Parl Watch Research (2026). “Cohesion — All roll calls · whole term, 16 Jul 2024 – 26 Sept 2026 · topic Climate & environment (model-assigned) · political groups · per month · abstentions counted”. Analysis. EU Parl Watch Research. https://news.eu-parl.st-solutions.dev/analysis/cohesion?bucket=month&scope=all&topic=climate&to=2026-09-26 (retrieved 26 September 2026). Data: European Parliament Open Data, https://data.europarl.europa.eu/ (CC BY 4.0); data version 579b2832c723 (26 Sept 2026) · methods: group-at-date v1, participation v1, abstention v1, loyalty v1, against-clear v1, cohesion v1, agreement v1, group-agreement v1, winning-side v1, similar-votes v1, scope v1, data-version v1.
BibTeX
@misc{epw-analysis-2026-09-26,
  author = {{EU Parl Watch Research}},
  title = {{Cohesion — All roll calls · whole term, 16 Jul 2024 – 26 Sept 2026 · topic Climate \& environment (model-assigned) · political groups · per month · abstentions counted}},
  year = {2026},
  howpublished = {\url{https://news.eu-parl.st-solutions.dev/analysis/cohesion?bucket=month&scope=all&topic=climate&to=2026-09-26}},
  url = {https://news.eu-parl.st-solutions.dev/analysis/cohesion?bucket=month&scope=all&topic=climate&to=2026-09-26},
  urldate = {2026-09-26},
  publisher = {EU Parl Watch Research},
  note = {Analysis. Data: European Parliament Open Data (CC BY 4.0); data version 579b2832c723 (26 Sept 2026) · methods: group-at-date v1, participation v1, abstention v1, loyalty v1, against-clear v1, cohesion v1, agreement v1, group-agreement v1, winning-side v1, similar-votes v1, scope v1, data-version v1}
}