Water pollution is another downside that can affect aquatic life in parks, as nicely as different places. Visitors to national parks can impact water high quality by introducing substances immediately into our bodies of water, such as through using streams to wash dishes. Unfortunately, what happens outdoors parks can also have a big impact on water and aquatic creatures in the park. For instance, phosphorus and sulfur in the water in Everglades National Park are negatively affecting crops and animals there. These chemicals are being launched into the waters in the park through runoff from close by farms.