For a reader who just finished
Books like Kakapo Rescue: Saving the World's Strangest Bird
after Kakapo Rescue: Saving the World's Strangest Bird by Sy Montgomery · ages 8–12
Same style

by Sy Montgomery
Nonfiction · ages 8–12 · grades 3–7 · 720L
Sy Montgomery's vivid, precise prose turns a real scientific expedition into a page-turner; kids learn how field biology works and why a single species matters, not through preaching but through genuine adventure.

by Jennifer Armstrong
Nonfiction · ages 10–14 · grades 5–9 · 800L
The gold standard for introducing true adventure and moral courage to middle graders — Armstrong's restraint and primary-source integration make a 100-year-old disaster feel immediate and real.

by Carl Hiaasen
Middle grade · ages 10–14 · grades 5–9 · 750L
A genuinely funny, page-turning adventure that sneaks real environmentalism and civic courage into a story kids actually want to reread—the first book that makes activism feel like kid rebellion.
Complementing on scientific method

by Steve Sheinkin
Nonfiction · ages 10–14 · grades 5–9 · 820L
A genuine page-turner that makes nuclear physics and WWII espionage accessible to smart 11-year-olds without dumbing down the science or the moral complexity.

by David Macaulay
Nonfiction · ages 8–12 · grades 3–7 · 720L
Macaulay's masterpiece — architectural history made visceral through illustration and narrative; kids who engage deeply will ask real questions about how things are built.

by Patricia Lauber
Nonfiction · ages 6–10 · grades 1–5 · 760L
Stunning photographic documentation of a real natural disaster and its aftermath—kids grasp cause-and-effect at landscape scale, and the healing narrative is genuinely hopeful without being saccharine.
We'd skip — for now

by Maureen Johnson
A step up — ages 14–18 · grades 9–12
Skip it if your teen is uncomfortable with a protagonist who makes impulsive decisions and doesn't always get parental permission (Ginny travels without fully informing her parents).