In what could be termed as the worst example of human interference, a new study has uncovered that the popular thermal pools of Yelowstone National Park have changed in its color over the time period due to the pollution contributed by the tourists.
Yellowstone, a massive national park maintained by the US National Park Service across states like Wyoming, Idaho and Montana. It was officially announced as the first national park of America that came under government protection since its establishment in 1872.
Since its establishment, the park has drawn many dignitaries and respectful visitors, but the researchers said the human intervention even in the lowest degree impacted adversely on the ecosystem in the park.
According to the researchers, Yellowstone’s thermal pools receive their colors and natural beauty from pollution. But the excessive human interaction with the pools has started resulting in the change of colors over time.
Even the lowest amount of pollution in the park that comes from the numerous visitors has made an adverse impact on the specific coloration of the pools.
Scientists said that the pollution from the tourists as well as the atmosphere have changed most of the parts of the thermal pools along Yellowstone park to provide them with their famous rainbow of colors.
The water in the pools remains heated by the geothermic activity of Yellowstone.