Sentences with phrase «on average global temperature»

It is well - established in the scientific community that increases in atmospheric CO2 levels result in global warming, but the magnitude of the effect may vary depending on average global temperature.

The study, published in the June 30 edition of the journal Environmental Research Letters, was based on an average global temperature increase of 1.8 degrees Fahrenheit, which is considered a relatively conservative estimate and the limit needed to avert catastrophic impacts.

The effect of the 2007 cooling on the average global temperature over time was to negate the hardly unusual increase of a little more than one degree centigrade since about the 1890's.

NASA's data on average global temperature reveal that the weather last September was the warmest for the month since scientists began tracking global temperatures in 1880.

In other words, it must account for every non-cyclical «natural» effect (forcing) on the average global temperature.