Q: I recently heard the term “green water.” I know that waste-water is sometimes referred to as “gray water,” but what does green water mean? A: Green water is a picturesque name for the water available in the soil for plants and the soil biota (microbes, earthworms, soil insects, etc.) to use. It’s available because … Continue reading “Green” water??
Q: I keep hearing in the news about sinkholes in Florida. What causes them? A: Most of Florida is underlain by a rock called limestone. This rock base is covered with material laid down by the ocean over a great period of time, which becomes our soil and the subsoil material below. A sinkhole swallowing … Continue reading Why Florida keeps falling in on itself
Q: What are the “dead zones” in the Gulf of Mexico and Lake Erie, and what causes them? The Gulf of Mexico dead zone (red area) during the summer. Photo: NASA A: When a body of water, such as a lake, stream, or the Gulf of Mexico, receives nitrogen and/or phosphorus nutrients, these nutrients feed … Continue reading What’s a “dead zone”?