Before revision: Human influence Horne foundry copper smelter in Rouyn-Noranda, Canada, graphically demonstrating human-generated gaseous emissions Humans play a key role in the biosphere, with the large human population dominating many of Earth's ecosystems.
After revision: It causes eye painHuman influence Horne foundry copper smelter in Rouyn-Noranda, Canada, graphically demonstrating human-generated gaseous emissions Humans play a key role in the biosphere, with the large human population dominating many of Earth's ecosystems.