Hotter temperatures: If emissions keep rising unchecked,
then global average surface temperatures will be at least 2ºC higher (3.6 ºF) than pre-industrial levels by 2100 — and possibly 3ºC or 4ºC or more.
Not exact matches
* However, the same panel
then concluded that «the warming trend in
global - mean
surface temperature observations during the past 20 years is undoubtedly real and is substantially greater than the
average rate of warming during the twentieth century.
If one postulates that the
global average surface temperature tracks the CO2 concentration in the atmosphere, possibly with some delay,
then when the CO2 concentration continues to rise monotonically but the
global average surface temperature shows fluctuations as a function of time with changes in slope (periods wherein it decreases),
then you must throw the postulate away.
Should the veracity of the GH theory not have to answer to these far more detailed predictions
then to a simple estimation of increased
surface temperature, and using whichever of the various means of arriving at a
global average best matches that one parameter?
If the different methods are not analysing different definitions
then why do values of
global average surface temperature (GASTA) from decades ago alter when the method is changed from month to month: which is the right determination any of the ones before a change or any of those after it?
To achieve an
average surface air
temperature, or a
global mean
temperature, first establish a baseline for the measurements; and
then weigh new data against the base line.
If heat flow into the deeper ocean (under 300m) is driven independently of
Global Average Surface temperature or the «greenhouse» effect, then we have no reason to suppose that the latter produces any «global warming» a
Global Average Surface temperature or the «greenhouse» effect,
then we have no reason to suppose that the latter produces any «
global warming» a
global warming» at all.
If present trends in the emission of greenhouse gases continue for 100 years, the group concludes,
then resultant human - induced
global warming will raise the Earth's
average surface temperature between 1.4 and 5.8 degrees Celsius (2.5 and 10.4 degrees Fahrenheit).