This new research helps to establish how coastal waters
influence atmospheric carbon dioxide levels and, in turn, climate.
The study concludes that incorporating this new insight into soil models will improve our understanding of how soils
influence atmospheric carbon dioxide levels and global climate.
Not exact matches
It is not only sunlight that plays a role in these cycles, but the
influence of glaciers and
atmospheric carbon dioxide.
Previous studies have suggested that temperature and, more specifically,
atmospheric carbon dioxide levels
influence body size more via an indirect impact on food availability and nutritional content.
«
Influence of increasing
carbon dioxide levels on the seabed: Storing CO2 below the seabed is one way to counteract increasing
atmospheric CO2 - levels.
«Human
influence is so dominant now,» Baker asserts, «that whatever is going to go on in the tropics has much less to do with sea surface temperatures and the earth's orbital parameters and much more to do with deforestation, increasing
atmospheric carbon dioxide and global warming.»
The model also accounted for natural drivers of change, including the direct
influence of increased
carbon dioxide on ocean -
carbon uptake and the indirect effect that a changing climate has on the physical state of the ocean and its relationship to
atmospheric carbon dioxide.
The study argued that changes in the sun's radiation output played a major role in
influencing shifts in Arctic air temperatures — a view at odds with mainstream climate science, which fingered
atmospheric carbon dioxide as a bigger player.
One would see the temperature line rising away from the SOI line if, for example, rising
atmospheric carbon dioxide concentrations had a significant
influence.
Given the
atmospheric lifetime of
carbon dioxide is many hundreds to thousands of years, we can now understand that long - lived greenhouses will also continue to exert a warming
influence on the worlds oceans for a very long time.
[UPDATED 6/23, 9:30 a.m.] Twenty years ago today, James E. Hansen testified before the Senate Energy Committee — in a room kept intentionally warm by committee staff — that the
atmospheric buildup of
carbon dioxide and other greenhouse gases from burning fossil fuels and forests was already perceptibly
influencing Earth's climate.
This is due to the fact that changes in
atmospheric transport and deposition in the case of 10Be or changes in the
carbon cycle in the case of 14C can
influence the measured concentrations.
Together with the long - term decrease of 15 p.p.m.v. during the past four glacial cycles, we suggest significant slow fluctuations in the
atmospheric CO2 concentration on timescales of several 105 years, probably
influenced by changes in the weathering14 or by major reorganizations in the
carbon reservoir of the global ocean15.
There is every likelihood that current changes in
atmospheric carbon dioxide are being
influenced by events up to a millennium ago.
I have, in front of me, the paper «The
influence of the 15 micron
carbon - dioxide band on the
atmospheric infra - red cooling rate» by Gilbert Plass of the Johns Hopkins University.
Fire can heavily tip the balance of land
carbon uptake and strongly
influence global
atmospheric carbon accumulations.
Biomass burning is a major global
influence, affecting biogeochemical cycles,
atmospheric chemistry and the
carbon cycle.
In these papers, we show that
carbon dioxide does not
influence the
atmospheric temperatures.
The short - term
influence of various concentrations of
atmospheric carbon dioxide on the temperature profile in the boundary layer.
From CSIRO: «What we learned is that in spite of droughts, floods, volcano eruptions, El Niño and other events, the Earth system has been remarkably consistent in regulating the inter-annual variations in
atmospheric carbon dioxide levels,» Tropical ecosystems regulate variations in Earth's
carbon dioxide levels Rising temperatures,
influenced by natural events such as El Niño,...
Only over climate timescales (typically, 30 years or more), do the long - term trends emerge that reflect the
influence of changes in
atmospheric levels of
carbon dioxide.»
The potential
influence of rising
atmospheric carbon dioxide (CO2) on public health: pollen production of common ragweed as a test case.
This calculation corrects for the known
influences of the
carbon cycle on the
atmospheric C concentration (for details see Muscheler et al. 2005a).
Early work at GFDL relating to
carbon focused on CO2 as a greenhouse gas and it's potential for doubling in response to human activities, through water vapor and other
atmospheric feedbacks in the context of latitudinal, land - sea and other inhomogeneities
influencing climate (e.g. Manabe 1968, 1986, 1987).
It is well established that the level of
atmospheric CO2, which directly
influences the Earth's temperature, depends critically on the rates of
carbon uptake by the ocean and the land, which are also dependent on climate.
Change to the level of
atmospheric carbon dioxide had no significant
influence.
Even if this hypothesis was at first founded upon assumptions for the absorption of
carbon dioxide which are not strictly correct, it is still an open question whether an examination of the «protecting»
influence of the higher
atmospheric layers upon lower ones may not show that a decrease of the
carbon dioxide will have important consequences, owing to the resulting decrease in the radiation of the upper layers and the increased temperature gradient at the earth's surface.
In terms of greenhouse agents, the main conclusions from the WGI FAR Policymakers Summary are still valid today: (1) «emissions resulting from human activities are substantially increasing the
atmospheric concentrations of the greenhouse gases: CO2, CH4, CFCs, N2O»; (2) «some gases are potentially more effective (at greenhouse warming)»; (3) feedbacks between the
carbon cycle, ecosystems and
atmospheric greenhouse gases in a warmer world will affect CO2 abundances; and (4) GWPs provide a metric for comparing the climatic impact of different greenhouse gases, one that integrates both the radiative
influence and biogeochemical cycles.
«Without this long - term storage, there is little
influence on
atmospheric levels of
carbon dioxide, a greenhouse gas that impacts earth's climate.»