Because carbon dioxide traps heat in the atmosphere, a lessening of atmospheric carbon dioxide concentrations would mean that more heat could escape into space. This would result in a net decrease in the Earth’s average temperature, assuming other factors remain the same.

Studies have shown that higher concentrations of atmospheric carbon dioxide affect crops in two important ways: they boost crop yields by increasing the rate of photosynthesis, which spurs growth, and they reduce the amount of water crops lose through transpiration. During that process they release water vapor.

Rising carbon dioxide concentrations will increase plant growth. More rapid leaf area development and more total leaf area could translate into more transpiration. Rising carbon dioxide concentrations will decrease leaf stomatal conductance to water vapor. This effect could reduce transpiration.

The data show significant CO2 deprivation to the plants, a drastic suppression of photosynthesis, respiration, starch accumulation, chlorophyll biosynthesis, and an increased accumulation of reactive oxygen species.

It takes extremely high concentrations of carbon dioxide to affect plant life. After an extended period of time when exposed to 10,000 ppm (parts per million) of carbon dioxide in the air, some plants begin to show signs of distress.

Why do I need to switch off at night? At night plants don’t use CO2, they produce it. The levels of CO2 in the water could also reach toxic levels, resulting in a tank of suffocating fish by morning. Most experts recommend investing in a regulator with a night shut-off valve to turn the gas off overnight.

2) Fish respiration. Fish breath 24/7 so this is good, too. Combine these 2 sources in a low tech tank, and the CO2 will rise through the night, be highest in the AM right before the lights come on, then drop through the day as the plants use the CO2. This matches the cycle in nature.

Lack of carbon (in the form of Carbon dioxide) is the most common variable that people fail to optimize. This is why “low CO2” is cited as the cause for many types of algae; higher CO2 levels by itself has no impact on algae, algae is not killed off by high CO2 levels.

High Indoor Levels of Carbon Dioxide Typically, carbon dioxide levels rise during the night when people are sleeping, especially if the door and windows are closed. The concentrations then fall during the day if the room is unoccupied.

Low level: 50 PPM and less. Mid level: Between 51 PPM and 100 PPM. High level: Greater than 101 PPM if no one is experiencing symptoms….Carbon Monoxide Levels That Will Set Off Your Alarm.

Hypercapnia is excess carbon dioxide (CO2) build-up in your body. The condition, also described as hypercapnea, hypercarbia, or carbon dioxide retention, can cause effects such as headaches, dizziness, and fatigue, as well as serious complications such as seizures or loss of consciousness.

A low CO2 level can be a sign of several conditions, including: Kidney disease. Diabetic ketoacidosis, which happens when your body’s blood acid level goes up because it doesn’t have enough insulin to digest sugars. Metabolic acidosis, which means your body makes too much acid.

It works like this: Momentary stress causes the body to tense and you begin to breathe a little more shallowly. A shallow breath lowers oxygen levels in the blood, which the brain senses as stress. Breathing then becomes a little faster and shallower. Oxygen levels fall a little more.

It’s normal for oxygen saturation levels to fluctuate with activity. If your oxygen saturation level runs low on an ongoing basis, whether at rest, during activity or while you sleep, talk to your health care provider about using supplemental oxygen.