Sentences with phrase «warming over the twentieth century»

What is more, one of the very first «skeptical» critiques of Cook et al was that it redefined the target in that the IPCC «consensus» was that 100 % or warming over the twentieth century was anthropogenic.

The latest report from the Intergovernmental Panel on Climate Change assesses the skill of climate models by their ability to reproduce warming over the twentieth century...

Carter et al. [1] refer to a statement: «half the warming over the twentieth century might be explained by solar changes «[11] and to the potential effect of cosmic rays [12].

Not exact matches

The basic fact that rising concentrations of greenhouse gases result in global warming has been understood since it was predicted from physical laws over a century ago; specification of the magnitude and geographical distribution of the warming are elucidated by the twentieth century observations and calculations.

In fact, we do in fact have NH and global temperature reconstructions over that period, which show the twentieth century warming to be much faster than the prior warming as the Earth exited the LIA.

Notice, for instance, that one account of the consensus (more accurate than Grimes's) holds that «most of the warming in the second half of the twentieth century has been caused by man», and does not exclude the majority of climate sceptics, who typically argue that the IPCC over estimates climate sensitivity.

Compared with the 1950 — 2005 results, the larger model versus observed difference over 1900 — 2005 is due to a much larger observed warming in the early twentieth century than the model expectation.

Diurnal temperature variation exceeds the 0.74 C twentieth century warming trend by orders of magnitude, but these variations obviously even out over long intervals.

The input of assumed anthropogenic aerosol cooling is needed because the model «ran hot»; i.e. it showed an amount and a rate of global warming which was greater than was observed over the twentieth century.

If the aerosol hypothesis were correct then the global distribution of warming and cooling over the twentieth century would be matched by the model which was adjusted with the aerosol cooling.

So, we now know, apparently that all those AGW critics believe that AGW is responsible for 50 % + of warming over at least the last 50 years (and possibly over the twentieth century).

Over the course of the twentieth century, Hansen and other climate scientists rierslot.net estimate aerosols may have offset global warming by as much as 50 percent by reducing the amount of sunlight reaching the surface.

The basic fact that rising concentrations of greenhouse gases result in global warming has been understood since it was predicted from physical laws over a century ago; specification of the magnitude and geographical distribution of the warming are elucidated by the twentieth century observations and calculations.

He was right about so many things — the background nineteenth - century CO2 concentration level and its increase over the twentieth century; the importance of high - quality temperature data and the warming trend observed over much of his lifetime; the infrared spectroscopy of CO2 and its effect on «sky radiation»; and more.

Plain Language Summary: Global and regional warming trends over the course of the twentieth century have been nonuniform, with decadal and longer periods of faster or slower warming, or even cooling.