Properties of carbon dioxide
There are several physical and chemical properties, which belong to carbon dioxide.
Where on earth do we find carbon dioxide?
Carbon dioxide can be found mainly in air, but also in water as a part of the carbon cycle. We can show you how the carbon cycle works, by means of an explanation and a schematic representation. --> Move to the Carbon Cycle.
Applications of carbon dioxide by humans
Humans use carbon dioxide in many different ways. The most familiar example is its use in soft drinks and beer, to make them fizzy. Carbon dioxide released by baking powder or yeast makes cake batter rise.
The part carbon dioxide plays in environmental processes
Carbon dioxide is one of the most abundant gasses in the atmosphere. Carbon dioxide plays an important part in vital plant and animal process, such as photosynthesis and respiration. These processes will be briefly explained here.
Influence of carbon dioxide on alkalinity
Carbon dioxide can change the pH of water. This is how it works:
Carbon dioxide emissions by humans
Environmental problems - the greenhouse effect
The troposphere is the lower part of the atmosphere, of about 10-15 kilometres thick. Within the troposphere there are gasses called greenhouse gasses. When sunlight reaches the earth, some of it is converted to heat. Greenhouse gasses absorb some of the heat and trap it near the earth's surface, so that the earth is warmed up. This process, commonly known as the greenhouse effect, has been discovered many years ago and was later confirmed by means of laboratory experiments and atmospheric measurements.
dioxide emissions, being the main source of carbon dioxide emissions. The remaining 20-25% of the emissions are caused by land clearing and burning and by emission from motor vehicle exhausts.
Rising carbon dioxide concentrations in air in the past decades
The Kyoto treaty
World leaders gathered in Kyoto, Japan, in December 1997 to consider a world treaty restricting emissions of greenhouse gases, mainly of carbon dioxide, that are thought to cause global warming. Unfortunately, while the Kyoto treaties have worked for a while America is now trying to evade them.
Carbon dioxide and health
Carbon dioxide is essential for internal respiration in a human body. Internal respiration is a process, by which oxygen is transported to body tissues and carbon dioxide is carried away from them.