Every 100 pounds of wood contains approximately 44 pounds of carbon. When burned, this carbon combines with oxygen (some in the wood and some from the air) to produce about 163 pounds carbon dioxide.
Approximately 36 billion metric tons of carbon dioxide are released each year from burning fossil fuels. This carbon dioxide is released into the atmosphere, where it contributes to the greenhouse effect and climate change.
Approximately 36 billion metric tons of carbon dioxide are released into the atmosphere each year from burning fossil fuels. This significant amount of carbon dioxide is a leading contributor to the greenhouse effect and global warming.
Approximately 36 billion metric tons of carbon dioxide are released each year from burning fossil fuels.
The carbon dioxide level fluctuates during a single year due to seasonal changes in plant growth and decay, which affect the amount of carbon dioxide absorbed and released into the atmosphere.
Almost half the mass of a tree is carbon, taken from the atmosphere in the form of carbon dioxide. A tree only takes in carbon when it is growing, and the amount that a tree grows in a year varies from tree to tree. Old trees are bigger and grow more than young trees in a year, usually.
Carbon dioxide (CO2)!It produces sulfuric oxides. (This was written by a 12 year old.)
Approximately 36 billion metric tons of carbon dioxide are released each year from burning fossil fuels. This carbon dioxide is released into the atmosphere, where it contributes to the greenhouse effect and climate change.
Approximately 36 billion metric tons of carbon dioxide are released into the atmosphere each year from burning fossil fuels. This significant amount of carbon dioxide is a leading contributor to the greenhouse effect and global warming.
Approximately 36 billion metric tons of carbon dioxide are released each year from burning fossil fuels.
The carbon dioxide level fluctuates during a single year due to seasonal changes in plant growth and decay, which affect the amount of carbon dioxide absorbed and released into the atmosphere.
According to Wikipedia's List of countries by carbon dioxide emissions the US emits 5,838,381,000 metric tonnes annually, which is 19.91% of the global total (Figures from 2007).
Like all vegetation, native tall grass is part of the carbon cycle. Plants use photosynthesis to remove carbon dioxide from the atmosphere. Later when the plant is eaten, or burnt, or degrades, that carbon finds its way back into the atmosphere. Each year the land and its vegetation puts 439 billion tons of carbon dioxide into the air. It also removes about 450 billion tons of carbon dioxide in the same year.
Photosynthesis uses carbon dioxide as a raw material where carbon dioxide is fixed into organic molecules. This process lowers the level of carbon dioxide in the atmosphere. The seasonal fluctuation of carbon dioxide levels during a year may be caused by increased photosynthesis during spring and summer.
They are both burned to release energy. They both emit carbon dioxide when burnt. However fossil fuel releases 300-million-year-old carbon dioxide, so it adds to global warming. Biomass releases carbon dioxide that was removed from the atmosphere when the plants grew, so it is part of the carbon cycle, NOT contributing to global warming.
Vehicle exhaust is mostly carbon dioxide, with a little water, carbon monoxide, hydrocarbons, and nitrogen oxides. This answer deals with the carbon dioxide content only.Sixteen percent (16%) of human carbon dioxide greenhouse gas emissions comes from road transport (cars, trucks and buses). Cars are responsible for about half of this (8%).Humans are responsible for around 35 billion tonnes of carbon dioxide emissions every year.Car emissions, 8% of that total, is around 2.8 billion tonnes of carbon dioxide (2,800,000,000).
Almost half the mass of a tree is carbon, taken from the atmosphere in the form of carbon dioxide. A tree only takes in carbon when it is growing, and the amount that a tree grows in a year varies from tree to tree. Old trees are bigger and grow more than young trees in a year, usually.
The carbon footprint of the average American is around 16 tons of carbon dioxide per year.