World Decline MapBack to live map

Guide

How DeclineMap works

Compare dated views, rate the evidence and add a place.

Submit evidence

  1. Open Google Maps Street View and choose the earlier year.
  2. Use Share, copy link, or embed map. Embeds are preferred.
  3. Repeat for the later year from the same place.
  4. Paste both links, choose a category, add the years, and send it for moderation.

Suggest a place

Suggest a location when you do not have both dated Street View links.

Add a Google Maps link, a short note, and the location becomes an open lead for contributors.

Rating decline

Choose No decline, Mild decline, Clear decline or Severe decline. Rate only the visible change supported by the two dated views.

Top rated pins need at least three ratings. Community ratings are opinions about the submitted evidence, not an official measure of an area.

Signed-in ratings are tied to your account. Anonymous ratings use a local browser identity.

Moderation

Submissions wait for review before appearing on the public map. Admins can correct labels, years, categories, and coordinates.