Sentences with phrase «seen substantial warming»

Not exact matches

«We have seen a substantial century - to - century variation on these fossil layers,» Anderson reports, «but the monsoon wind strength has increased during the past four centuries as the Northern Hemisphere has warmed.»

«To see very large increases in extremely low snow years within the occurrence of that [Copenhagen] target suggests that there could be substantial impacts from climate change even if that global warming target is achieved,» Diffenbaugh said.

Indeed, the dampened late 20th century winter warming over a substantial part of Greenland, particularly the western and southern regions emphasized by the network of stations analyzed by Vinther et al, is known (see e.g. this NOAA page) to be associated with a trend toward the positive phase of the Arctic Oscillation («AO») pattern.

Just as many of the home runs hit by a baseball player on steroids were almost certainly due to the taking of steroids — even if you can't prove that any one home run resulted from it — so too is it likely that the record - breaking heat we are seeing in the U.S. this summer of 2012 is very likely due, in substantial part, to the impact of human - caused climate change and global warming.

Indeed, the dampened late 20th century winter warming over a substantial part of Greenland, particularly the western and southern regions emphasized by the network of stations analyzed by Vinther et al, is known (see e.g. this NOAA page) to be associated with a trend toward the positive phase of the Arctic Oscillation («AO») pattern.

Live Updates Below and see new post Richard Muller, a cantankerous but creative physicist at the University of California, Berkeley, who once derided climate change research, then dove in with his own reconstruction of terrestrial temperature changes and confirmed substantial warming, has now concluded that recent warming is «almost entirely» human caused.

Scientists in Canada have recorded temperatures for the 71 - year peiod from 1936 to 2006, and have seen that mean monthly temperatures have increased enough to provide what they call a «substantial warming signal.»

Given that human emissions of CO2 were not very substantial until after WW2 I can not see how human GHGs could have contributed quickly enough or significantly enough to the observed warming of the early and late 20th Century.

Indeed, the map at which JAXA spokesman Sasano was pointing (see photo above) had been expected by most experts to show that western nations are to blame for substantial increases in atmospheric levels of carbon dioxide, causing global warming.

So, we can see that both the Unadjusted and the Partially adjusted datasets show a substantial warming bias due to poor station sitings.

The second issue raised in our Science paper (now available free, see bottom of this post) is that perhaps there shouldn't yet have been substantial long - term trends in hurricane intensity — whether we would be able detect them above the natural variability or not — because until the last couple of decades, aerosol cooling effects on hurricanes have been counteracting the effects of greenhouse gas warming.

For example, we saw in the previous section, that the temperature records show a period of substantial warming followed by a period of substantial cooling up to the satellite era.

As Peter Molnar, one of the paper's authors, says in an interview with the BBC, ``... as the climate warms, we may not see any substantial effect on polar bear reproduction and survival for a while, up until some threshold is passed, at which point reproduction and survival will decline dramatically and very rapidly.»

This has significant implications for the Pacific Northwest — which stands a good chance of seeing very dry and warm conditions — and for California, which may see quite a lot of water falling from the sky in liquid form but considerably less falling as snow and sticking around to form a substantial middle - elevation snowpack.

If greenhouse warming causes a substantial increase in Atlantic hurricane activity, then the century scale increase in tropical Atlantic SSTs since the late 1800s should have produced a long - term rise in measures of Atlantic hurricanes activity, similar to that seen for global temperature, for example.

It has been seen that substantial increases in the concentration of carbon dioxide in the atmosphere and global climate warming have occurred cyclically, even when there was as yet no industrial action on nature.