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Reduce and Cap Carbon Dioxide at or Below 350 parts per million . . .
350PPM . . . the most important number you need to know!
A Newsletter of the OMNI Center for Peace, Justice & Ecology's - Climate Change Task Force produced by the Peaceable Kingdom's Thinking Like A Mountain Institute.
350PPM (parts per million concentration of carbon dioxide in the Earth's atmosphere) seeks to educate the public about the impending climate crisis. We must reduce greenhouse gas emissions and return the levels of CO2 in the atmosphere to no more than 350 parts per million. It is only at these levels or below that the climate and environmental systems of the earth as we know them can be maintained. As a point of reference it was 1988 when the earth’s atmosphere contained 350 PPM of CO2.
A Newsletter of the OMNI Center for Peace, Justice & Ecology's - Climate Change Task Force produced by the Peaceable Kingdom's Thinking Like A Mountain Institute.
350PPM (parts per million concentration of carbon dioxide in the Earth's atmosphere) seeks to educate the public about the impending climate crisis. We must reduce greenhouse gas emissions and return the levels of CO2 in the atmosphere to no more than 350 parts per million. It is only at these levels or below that the climate and environmental systems of the earth as we know them can be maintained. As a point of reference it was 1988 when the earth’s atmosphere contained 350 PPM of CO2.
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If humanity wishes to preserve a planet similar to that on which civilization developed, paleoclimate evidence and ongoing climate change suggest that CO2 will need to be reduced from its current 385 ppm to at most 350 ppm.
DR. JAMES HANSEN,
Target CO2.
DR. JAMES HANSEN,
Target CO2.
The Keeling Curve
The rise of carbon dioxide gas in our atmosphere has been measured continuously since 1958 and follows an oscillating line known as the "Keeling Curve," named after Dr. Charles David Keeling, professor at Scripps Institution oceanography. A renowned expert on the way carbon moves through our planet’s did it come from the ocean? There are ways to
distinguish between the two possibilities, and the answer
is that the little squiggles in the Keeling curve are actually
due to land plants. Since most of the land is in the northern hemisphere, the fluctuations are greatest there. (If the ocean were to blame, we should see a larger effect in the southern hemisphere.) Every spring, when trees leaf out and
grasslands and farmlands green, the carbon dioxide
environment, Keeling was the first to measure carbon
dioxide in the atmosphere on a continuous basis. He
discovered its annual fluctuations (the little squiggles
in the curve) and was the first to report that global
atmospheric concentrations of carbon dioxide were rising.
The rise of carbon dioxide gas in our atmosphere has been measured continuously since 1958 and follows an oscillating line known as the "Keeling Curve," named after Dr. Charles David Keeling, professor at Scripps Institution oceanography. A renowned expert on the way carbon moves through our planet’s did it come from the ocean? There are ways to
distinguish between the two possibilities, and the answer
is that the little squiggles in the Keeling curve are actually
due to land plants. Since most of the land is in the northern hemisphere, the fluctuations are greatest there. (If the ocean were to blame, we should see a larger effect in the southern hemisphere.) Every spring, when trees leaf out and
grasslands and farmlands green, the carbon dioxide
environment, Keeling was the first to measure carbon
dioxide in the atmosphere on a continuous basis. He
discovered its annual fluctuations (the little squiggles
in the curve) and was the first to report that global
atmospheric concentrations of carbon dioxide were rising.
Most CURRENT Reported CO2 READING
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