Considering the uncertainty of v e or T e (duration of tectonic erosion), this effect can explain about half of the observed data.
The coefficient of determination of this model was R = 44%, thus nearly half of the observed variance could be explained by the factors analyzed.Predicted versus observed LOS is shown in Figure 2.
After doing a bit of arithmetic, Cohen argued that it could account for roughly half of the observed increase in mortality.
It is estimated that, at present, the melting of ice sheets and glaciers contributes to about half of the observed sea level rise.
From studies of twins and similar research, scientists had estimated that, as with schizophrenia, about half of the observed variations in many personality traits were environmental in origin, and half were genetic.
"It is extremely likely that human influence on climate caused more than half of the observed increase in global average surface temperature from 1951 to 2010," the draft report says.
The study, being published in Geophysical Research Letters, also looked back at recent ice behavior and concluded that "internal variability explains approximately half of the observed 1979 2005 September Arctic sea ice extent loss".
Again, assuming the draft language survives, this will be the single most important conclusion: It is extremely likely that human activities have caused more than half of the observed increase in global average surface temperature since the 1950s.
According to a sentence in a draft of the report, which could still change: "It is extremely likely that human influence on climate caused more than half of the observed increase in global average surface temperature from 1951 to 2010".
Such a drop would eliminate about half of the observed increase in obesity in America since 1980.Even so, the idea of tackling obesity via the tax system has some serious flaws.
On the causes of climate change, the IPCC says: "It is extremely likely that more than half of the observed increase in global average surface temperature from 1951 [to] 2010 was caused by the anthropogenic increase in greenhouse gas concentrations and other anthropogenic forcings together".
