Garden Mulch Helps Waterways if enough people use it. Much of the dirt in our waterways is due to storm water picking up chemicals and debris. Many of these items result in damage to rivers, streams,catchments and oceans. We sense that this causes pollution and depletes marine life, and we see it clearly in times of flood, but it only takes a shower.

When it is raining heavily, rainwater flows over the lawns and gardens picking up debris,pesticides, fertilizers, oil and many other harmful substances. These are subsequently dumped into the streams, bays and rivers. Read more
Where water is concerned, most of us are only interested in quality of the water that we use. But we all have a role in keeping waterways clean.
Can frogs measure water health? According to National Geographic the answer is Yes.
According to Wikipedia Hydrobiology is “The science of life, and life processes in Water”