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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
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Week of 1 Jun 2026
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Topic · social

Treaty Of Waitangi Health Principles

342 posts · 67,832 engagement · first seen 25 May 2017 · last seen 6 Jun 2026

Greenpeace Aotearoa challenges MPs to drink nitrate-contaminated water from rural areas, demanding a lower drinking water nitrate limit due to outdated policies and health risks from intensive dairy farming.

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.

  • facebook
    15 posts · 20,073 engagement
    20,073
  • reddit
    43 posts · 13,625 engagement
    13,625
  • twitter
    22 posts · 11,923 engagement
    11,923
  • youtube
    187 posts · 2,061 engagement
    2,061

Top posts by engagement

The most-engaged posts referencing this topic. Engagement is likes + 2×shares + 3×replies; the order matches the digest ranking on /social.