Carbon dioxide solvents such as organochlorides. It is used by some dry cleaners for this reason (see green chemistry). It is used in the preparation of some aerogels because of the properties of supercritical carbon dioxide. Plants require carbon dioxide to conduct photosynthesis. The atmospheres of greenhouses may (if of large size, must) be enriched with additional to sustain and increase the rate of plant growth. At very high concentrations (100 times atmospheric concentration, or greater), carbon dioxide can be toxic to animal life, so raising the concentration to 10,000 ppm (1%) or higher for several hours will eliminate pests such as
Ocean storage of carbon dioxide However, organisms are not only affected by the acidification of water in the presence of heightened carbon dioxide (carbon dioxide) levels. carbon dioxide itself interacts with the physiological function of individual organisms. These effects are more damaging than those associated with changes in pH of environment. When carbon dioxide enters organisms, through diffusion across tissue, it becomes internally accumulated which can then cause anesthesia and, depending on the concentration of carbon dioxide, death. The internal accumulation will also cause organisms to experience blood acidification. This weakens organisms' ability to uptake oxygen and consequently weakens their performances. This effect is more