Sentences with phrase «activity changes in atmospheric temperatures»

A statistically significant signature of multi-decadal solar activity changes in atmospheric temperatures at three European stations, Vladimir Kossobokov, Jean - Louis Le Mouel and Vincent Courtillot, 05/2010, Journal of Atmospheric and Solar - Terrestrial Physics, Volume 72, Issues 7 - 8, pp. 595 - 606

Not exact matches

Given that atmospheric CO2 will likely continue to climb over the next century, a long - term increase in flowering activity may persist in some growth forms until checked by nutrient limitation or by climate change through rising temperatures, increasing drought frequency and / or increasing cloudiness and reduced insolation.

Res — math.ku.dk ``... Evidence is mounting that changes in global surface temperature can be attributed to human activities that increase the atmospheric concentration of greenhouse gases and tropospheric sulfates [Sanier et al, 1996a, 1996b].

(3) Subordinate to solar activity alone, atmospheric water vapor / cloud formation and movement is the largest known variable that influences temperature changes in the atmosphere of the earth, and the earth's oceans.

However, a confident assessment of human influence on hurricanes will require further studies using models and observations, with emphasis on distinguishing natural from human - induced changes in hurricane activity through their influence on factors such as historical sea surface temperatures, wind shear, and atmospheric vertical stability.

Based on an extensive literature review, we suggest that (1) climate warming occurs with great uncertainty in the magnitude of the temperature increase; (2) both human activities and natural forces contribute to climate change, but their relative contributions are difficult to quantify; and (3) the dominant role of the increase in the atmospheric concentration of greenhouse gases (including CO2) in the global warming claimed by the Intergovernmental Panel on Climate Change (IPCC) is questioned by the scientific communities because of large uncertainties in the mechanisms of natural factors and anthropogenic activities and in the sources of the increased atmospheric CO2 concentrchange, but their relative contributions are difficult to quantify; and (3) the dominant role of the increase in the atmospheric concentration of greenhouse gases (including CO2) in the global warming claimed by the Intergovernmental Panel on Climate Change (IPCC) is questioned by the scientific communities because of large uncertainties in the mechanisms of natural factors and anthropogenic activities and in the sources of the increased atmospheric CO2 concentrChange (IPCC) is questioned by the scientific communities because of large uncertainties in the mechanisms of natural factors and anthropogenic activities and in the sources of the increased atmospheric CO2 concentration.

Long - term Cenozoic temperature trends, the warming up to about 50 Myr before present (BP) and subsequent long - term cooling, are likely to be, at least in large part, a result of the changing natural source of atmospheric CO2, which is volcanic emissions that occur mainly at continental margins due to plate tectonics (popularly «continental drift»); tectonic activity also affects the weathering sink for CO2 by exposing fresh rock.

One problem with the AMO idea is that despite the apparent relationship between oscillating sea temperatures, atmospheric changes and hurricane activity, scientists have yet to find an explanation in nature for why such a cycle would exist.

Warming proponents often say there is no mechanism whereby small changes in solar activity can be scaled up to the apparently large changes in atmospheric temperature.

As a researcher in the field for more than 30 years, I am not aware of a single peer - reviewed paper or review, in a quality atmospheric science journal, that relates the temperature changes over this period to only natural causes such as changes in solar activity.

The identification of other, sometimes more powerful, greenhouse gases such as methane, the contributions to atmospheric carbon dioxide from other human activities such as deforestation and cement manufacture, better understanding of the temperature - changing properties of atmospheric pollution such as sulphur emissions, aerosols and their importance in the post-1940s northern hemisphere cooling: the knowledge - base was increasing year by year.