Showing papers on "Carbon dioxide in Earth's atmosphere published in 1976"

Atmospheric carbon dioxide variations at Mauna Loa Observatory, Hawaii

Abstract: The concentration of atmospheric carbon dioxide at Mauna Loa Observatory, Hawaii is reported for eight years (1964-1971) of a long term program to document the effects of the combustion of coal, petroleum, and natural gas on the distribution of CO, in the atmosphere. The new data, when combined with earlier data, indicate that the annual average CO, concentration rose 3.4 '% between 1959 and 1971. The rate of rise, however, has not been steady. In the mid-1960's it declined. Recently it has accelerated. Similar changes in rate have been observed at the South Pole and are evidently a global phenomenon.

Modulation of atmospheric carbon dioxide by the Southern Oscillation

Abstract: ATMOSPHERIC CO2 records for the South Pole and Mauna Loa Observatory, Hawaii, show a seasonal variation, presumably arising from the uptake and release of CO2 by vegetation, and a long term increase, almost certainly caused by combustion of fossil fuel. The increase is much greater in some years than in others1,2. Changes in the rate of fossil fuel combustion are not likely to be the cause of the variation in yearly increase, as combustion has increased very steadily3. I present here evidence that the variation is connected to the Southern Oscillation, a large scale atmospheric and hydrospheric fluctuation with an irregular period of 1–5 yr (ref. 4). The connection, if present, indicates that a principal cause of the variation may be a change in the rate of removal of CO2 by the oceans.

Atmospheric carbon dioxide variations at the South Pole

Abstract: Duplicate measurements of 749 discrete samples of air collected at the South Pole indicate that the seasonally adjusted concentration of atmospheric carbon dioxide in the polar southern hemisphere rose 3.7% between 1957 and 1971. The rise, mostly attributable to the burning of fossil fuels, has not been steady. In the mid-1960's, possibly as a result of wide-spread cooling of surface ocean water, it slackened for several years; recently it has accelerated. Similar changes in rate have also been observed at Mauna Loa Observatory, Hawaii, in the northern hemisphere and are evidently a global phenomenon. DOI: 10.1111/j.2153-3490.1976.tb00702.x

Method for obtaining carbon dioxide from the atmosphere and for production of fuels

Abstract: The invention disclosed provides a new improved chemical method for combustible fuel production by converting carbon dioxide in the atmosphere to a carbonate following which the recovered carbonate is combined with hydrogen gas to produce combustible fuels e.g. methane and methanol. The present method provides means for fuel generation and may advantageously use heat and radiation energy derived from nuclear reactors. This application implies certain environmental advantages, in that burning of fuels containing carbon derived only from atmospheric CO 2 would not add to the CO 2 content of the atmosphere. Recycling of lime as CaO or Ca(OH) 2 would eliminate the problem of disposing of those materials as encountered by others teaching use of carbonates but not using such a closed cycle.

The Relationship between the Atmospheric Carbon Dioxide Concentration and the Carbon-14 Activity in Tokyo

Abstract: Measurements of the atmospheric CO2 concentration and the 14C activity in Tokyo were carried out. The activity of 14C in the CO2 decreased with an increase in the atmospheric CO2 concentration, indicating that increases in the atmospheric CO2 are caused only by the burning of fossil fuels.