diff --git a/public/games/age-of-dwarves/guide/src/pages/EcologyWebPage.tsx b/public/games/age-of-dwarves/guide/src/pages/EcologyWebPage.tsx
index 5c276cc8..0686bc8d 100644
--- a/public/games/age-of-dwarves/guide/src/pages/EcologyWebPage.tsx
+++ b/public/games/age-of-dwarves/guide/src/pages/EcologyWebPage.tsx
@@ -9,8 +9,8 @@ import {
 } from './ecology-web/styled'
 import {
   SVG_W, SVG_H, BAND_H, TOP_PAD, LABEL_W, NODE_AREA_X, NODE_AREA_W, FAUNA_X, FAUNA_W,
-  BANDS, DIET_COLORS, LAYER_BANDS,
-  bandY, bandCenterY, primaryLayer, faunaHabitatPercent,
+  BANDS, DIET_COLORS,
+  bandY, bandCenterY, primaryLayer,
   SpeciesNode, FaunaHabitatBar, ConnectionArc, TooltipGroup,
   type PlacedNode,
 } from './ecology-web/components'
diff --git a/public/games/age-of-dwarves/guide/src/simulation/__tests__/ecology-helpers.ts b/public/games/age-of-dwarves/guide/src/simulation/__tests__/ecology-helpers.ts
index 932b99f7..9f6d62c2 100644
--- a/public/games/age-of-dwarves/guide/src/simulation/__tests__/ecology-helpers.ts
+++ b/public/games/age-of-dwarves/guide/src/simulation/__tests__/ecology-helpers.ts
@@ -84,7 +84,6 @@ export function makeTile(col: number, row: number, seed: number): TileState {
     river_flow: {},
     river_source_type: '',
     fish_stock: 0.0,
-    aerosol_mitigation: 0.0,
     resource_id: '',
   }