If this person were in a larger enclosed space with several buses running, it might take a few months, but eventually death is equally certain.
Not one molecule of CO2 can escape our environment and we have no garage door to open.
We are putting at least 60+ billion pounds of CO2 into the atmosphere daily!
If climate disasters are to be averted, atmospheric carbon dioxide (CO2) must be reduced below the levels that already exist today… PhysOrg.com
…To maintain a planet similar to that on which civilization developed, an optimum CO2 level would be less than 350 ppm — a dramatic change from most previous studies, which suggested a danger level for CO2 is likely to be 450 ppm or higher. Atmospheric CO2 is currently 385 parts per million (ppm) and is increasing by about 2 ppm each year from the burning of fossil fuels (coal, oil, and gas) and from the burning of forests.
“Out of sight, out of mind,” is a pithy saying that aptly sums up the attitude most industrialized countries have toward ocean acidification. While there has been much (justified) hand-wringing about the terrestrial impacts of climate change, policymakers have largely ignored the threats posed by acidic seas – which are considerable.
There is about 50 times as much carbon dissolved in the oceans in the form of CO2 and CO2 hydration products as exists in the atmosphere. The oceans act as an enormous carbon sink, having "absorbed about one-third of all human-generated CO2 emissions to date." Generally, gas solubility decreases as water temperature increases. Accordingly, carbon dioxide is released from ocean water into the atmosphere as ocean temperatures rise.
The oceans have long buffered the effects of climate change by absorbing a substantial portion of the greenhouse gas carbon dioxide. But this benefit has a catch: as the gas dissolves, it makes seawater more acidic. Now an international panel of marine scientists says this acidity is accelerating so fast it threatens the survival of coral reefs, shellfish and the marine food web generally. NY Times Jan 30, 2009
If we don't dramatically reduce our CO2 emissions, somewhere in the near future catastrophic failure of our eco system is inevitable.
The vast majority of world scientists agree the window is short to prevent disaster. We may have only 6 to 10 years - as the UN Intergovernmental Commission on Climate Change told U.S. Senators. "We're toast if we don't get on a very different path," James Hansen, Director of the Goddard Institute of Space Sciences, told The Associated Press.