What the picker changes

Top topics digest — the cards score the selected period against the prior 4 weeks.
12-week heatmap & outlet matrix — show the 12 weeks ending at the selected week (they slide back with the picker, they aren’t a fixed snapshot).
Per-topic volume / alias drift — same 12-week trailing window, anchored on the selected period.
Coverage gap quadrant — scores the selected period against the 12 weeks before it (not including it).
Anomaly cards — only show alerts the detector fired during the selected period. Quiet weeks legitimately show none.

What stays as-is

Outlet orientation strip / lean colours — context-only, drawn from the last 12 weeks of activity regardless.
Co-occurrence graph — recent-activity anchored, not picker-driven.
Source & topic profiles — all-time data for the topic; the picker doesn’t affect them.

Rolling 7 days is a sliding live window for “current vibes”; switch to Weekly to compare specific weeks side-by-side.

Weekly Rolling 7 days

live window

Topic · social

Carbon Emissions From Cars

9 posts · 329 engagement · first seen 22 Feb 2026 · last seen 18 Jun 2026

A nostalgic and critical reflection on the revival of the Kaimai Express passenger train, highlighting the historical decline of rail services, the dangers of car-centric planning, and the urgent need for safer, more sustainable transport alternatives.

Stance breakdown

How the per-edge framings classify across 8 classified edges. Each framing is labelled by a small AI stance classifier; see the methodology page for details.

25%

50%

25%

Supportive 2 Dismissive 4 Mocking 2

Sentiment breakdown

Whole-post emotional valence across 8 classified posts that reference this topic. Distinct from stance: a post can be supportive of the topic and still negative in tone (an angry supporter) — the two together capture the texture short-form posts compress into very few words.

13%

88%

Neutral 1 Negative 7

Platform mix

Where the conversation is happening. Engagement is volume-weighted (likes + 2×shares + 3×replies); a small number of high-impact posts can outrank a high-volume but low-engagement platform.

youtube

7 posts · 4 engagement

4
twitter

1 post · 4 engagement

4

Carbon Emissions From Cars

Stance breakdown

Sentiment breakdown

Platform mix

Top posts by engagement