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Carbon dioxide levels in the atmosphere in June 1994 were around 350 ppm (parts per million). Levels now (2013) are approaching 400 ppm.
Carbon dioxide levels in the atmosphere in 1960 were around 315 ppm (parts per million). Levels now (2013) are approaching 400 ppm.
Carbon dioxide.
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Solid carbon dioxide is not dangerous but avoid contact with skin and eyes.
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Carbon Dioxide because without water you die and with carbon dioxide(concentrated in large amounts) you will have trouble breathing, or possibly die.
Carbon dioxide is not toxic but is also not breathable.
Carbon dioxide levels in the atmosphere in 1993 were around 360 ppm (parts per million). Levels now (2013) are approaching 400 ppm.
Carbon dioxide levels in the atmosphere in 1996 were around 358 ppm (parts per million). Levels now (2013) are approaching 400 ppm.
Carbon dioxide levels in the atmosphere in 2000 were around 370 ppm (parts per million). They are now (2013) approaching 400 ppm.
Carbon dioxide levels in the atmosphere in 1910 were around 290 ppm (parts per million). They are now approaching 400 ppm.
Carbon monoxide bonds the the hemoglobin in out red blood cells. This renders our blood unable to transport oxygen. Carbon dioxide does not do this.
Carbon dioxide levels in the atmosphere in June 1994 were around 350 ppm (parts per million). Levels now (2013) are approaching 400 ppm.
Carbon dioxide levels in the atmosphere in 1960 were around 315 ppm (parts per million). Levels now (2013) are approaching 400 ppm.