Sentences with phrase «global temperature change»

In recent decades, a number of groups have tried combining sets of these proxy records together to construct long - term estimates of global temperature change over the last millennium or so.

Comparing global temperature changes in different models is one way of checking their results.

That is why a trace gas like CO2 can only have a minimal impact on global temperature changes.

The analyses are based on calculating temperature differences at one point in time relative to the average over a certain period (anomalies) and creating a time series of averaged global temperature change.

Something was clearly different about the nature of global temperature change since 1997 than it had been in the previous two decades.

Future global temperature change should depend mainly on atmospheric CO2, at least if fossil fuel emissions remain high.

I was open minded as to the cause of global temperature changes when I started my participation in the blogosphere several years ago.

Consider the effect of using only minimum temperatures in a study which claims to show global temperature change.

Drawing from both social psychology and climate science, the new model investigates how human behavioral changes evolve in response to extreme climate events and affect global temperature change.

It is clear why the satellite method is more responsive at detecting global temperature change, but that doesn't explain why the station method is becoming less effective over time.

In our case «sensitivity» is a measure of this question: if we put in so much change in CO2, how much global temperature change will we get out?

Combining climate projections and social processes, the model predicts global temperature change ranging from 3.4 to 6.2 °C by 2100, compared to 4.9 °C from the climate model alone.

The two have published papers together on basic climate dynamics and engineering techniques that could be used to modify global temperature changes.

The chart on the right, in contrast, examines global temperature change and its relationship to CO2 in a different manner.

The CO2 replaces water vapour to maintain a constant greenhouse effect, so global temperature changes would be negligible.

With such liberties taken with arithmetic, it makes no difference what graphs depicting global temperature change say.

Future global temperature change should depend mainly on atmospheric CO2, at least if fossil fuel emissions remain high.

The largest year - to - year average global temperature change on record is less than 0.3 °C, so this was a rather remarkable prediction.

As global temperatures change, not all shifts will be equal.

We calculate global temperature change for a given CO2 scenario using a climate response function (Table S3) that accurately replicates results from a global climate model with sensitivity 3 °C for doubled CO2 [64].

The paper shows that the estimated observed global temperature change from 1998 - 2012 is between -0.03 and +0.13 C per decade, mean 0.05 C. Within 95 % probability, it could be zero or negative.

Similar to the implied sensitivity in Hansen and Sato, a ~ 4 °C global temperature change caused by a ~ 6 W / m2 forcing corresponds to a ~ 2.5 °C sensitivity to doubled CO2.

We calculate global temperature change for a given CO2 scenario using a climate response function (Table S3) that accurately replicates results from a global climate model with sensitivity 3 °C for doubled CO2 [64].

In our year - 2000 published analysis of these data through 1997 (Causes of Global Temperature Changes During the 19th and 20th Centuries, Geophysical Research Letters, 27:14, 2137 - 2140; Natalia Andronova & Michael Schlesinger), we showed that this warming was predominantly due to people.

Or consider Carroll's claims that «potential global temperature changes projected over the next century approach those that took place 252 million years ago.»

They conclude that «urban warming does not unduly bias estimates of recent global temperature change.»

«I would like input from any of them on what they presume might be the value of estimating global temperature changes in a manner not involving the grids or other forms of local averaging.»

These facts were enough for an NAS panel, including Christy, to publish a report Reconciling Observations of Global Temperature Change which concluded that «Despite differences in temperature data, strong evidence exists to show that the warming of the Earth's surface is undoubtedly real, and surface temperatures in the past two decades have risen at a rate substantially greater than average for the past 100 years»

Figure 1: Annual global temperature change (thin light red) with 11 year moving average of temperature (thick dark red).

However some people probably won't be worried, because they simply can't seem to compute that small global temperature changes over time can have severe impacts like this that could reshape climate systems.

NASA reports global temperature change in reference to a 1951 - 1980 climate baseline, and NOAA reports the anomaly in reference to a 20th century average temperature.