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Warming reduces nitrogen emissions in some forests (Level A1) — brown trees on white snow covered ground during daytime

Warming reduces nitrogen emissions in some forestsCEFR A1

10 Dec 2025

LevelA1
A2
B1
B2

Adapted from Jules Bernstein - UC Riverside, Futurity • CC BY 4.0

Photo by Myko Makhlai, Unsplash

Level A1 – Beginner
2 min
70 words
  • Scientists study a forest site over many years.
  • They measure gases that come from the soil.
  • One important gas they check is nitrogen.
  • The researchers warmed parts of the forest plots.
  • Warming made drier places even drier sometimes.
  • In dry areas, nitrogen gas fell after warming.
  • In wet areas, warming increased nitrogen emissions.
  • Trees did not grow more in warmed plots.
  • The team continues to watch trees and soil health.

Difficult words

  • measure — find the amount or size with tools
  • soil — the top layer of earth where plants grow
  • nitrogen — a common gas in air and in soil
  • warm — make something hotter in temperature
    warmed, warming
  • dry — not having much water or moisture
    drier
  • emission — a gas or chemical released into the air
    emissions

Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.

Discussion questions

  • Do you visit a forest?
  • Is the place where you live dry or wet?
  • Have you ever seen someone measure plants or soil?

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