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Green Lakes and Greenhouse Gases: What to Know

| 4/19/2019 10:34:00 AM


Lakes around the world are turning green. While going green is usually a good thing for the environment, in this case, it's not. Lakes "turning green" due to algae blooms are causing a range of environmental problems, including increased greenhouse gas emissions.

What Causes Green Lakes?

An algal bloom is a rapid increase in the amount of algae in a body of water. Excess nutrients, such as phosphorous and nitrogen, in the water are often the cause of algal blooms. These blooms tend to turn water green but may also turn them red or yellowish-brown. If a bright green bloom occurs, it's likely because of blue-green algae, which is actually a type of bacteria.

Human activities are often the reason excess nutrients enter the water. Agriculture is a leading source of these nutrients, as fertilizers applied to crops and animal manure can introduce excess nutrients into waterways. Fertilizers applied to lawns and gardens also contribute, and stormwater and wastewater may carry excess nutrients into the water. When a body of water is overloaded with nutrients, the phenomenon is called "eutrophication."

Problems Associated With Green Lakes

Algal blooms lead to a number of problems. They can release toxins that cause illness and death in people and animals. Microcystis cyanobacteria, or blue-green algae, can create 80 different types of a toxin called microcystin. This toxin can cause vomiting, diarrhea, abdominal pain and liver pain in humans, and removing these toxins requires the use of chemicals and carbon filters.

Algae blooms can also lead to depleted oxygen levels in water, creating what are called "dead zones." As the algae that make up a bloom start to die off, the bacteria that decompose them increase in number. These bacteria use the dissolved oxygen in the water, potentially depleting it to the point that fish and other animals can't survive.

4/25/2019 10:17:03 PM

Need keep with resolving the primary contributing factors instead of the dubious climate con tangent.

4/24/2019 9:11:13 AM

For those who don't know, this old world and Nature's Law combine to make up one gigantic chemical factory. Everything is processed and recycled by nature, even the most "toxic" elements to humans supports some kind of life forms, such as the microbes found living in boiling, highly toxic water around deep sea volcanic vents. Chemists are now working with green algae to develop ways to greatly increase it's output of - you guessed it, fossil fuel (oil) after the stuff was discovered floating on water in a ditch years ago. Certain microbes are used to clean up toxic spills or cleanse waste water of pollutants. It may take nature a long time (in human terms) to clean up what we consider pollution, but to nature, it's all just natural cycles. Nature's Law also applies to "climate change" regardless of what humans do, nature is much larger. We think of seasons being on an annual cycle and maybe a decades variation in conditions. Nature functions on several overlapping, longer "seasonal" cycles that stretch over decades, centuries and eons. That's why there have been ice ages and tropical plant fossils found in polar regions. Man made "climate change" is, if anything, minuscule and very local. The ice age predicted by climate alarmists in 1970 that was going to cause crop failures and famine by Y2K did not occur so, now a "sky is falling" event is supposed to come in the form of "global warming". Humans and other living things have adapted to natural "climate change" for a long time and will do so as long as the Sun doesn't explode and fry the planet. One word for dealing with climate change, whichever way it goes - adapt.

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