Sentences with phrase «see large volcanic eruptions»

He tells Newsweek the findings play into a bigger picture, where we see large volcanic eruptions having an impact on the global climate that causes a chain effect resulting in social unrest.

Not exact matches

It's also now well understood that large volcanic eruptions have a short - term cooling effect, see GW FAQ: effect of volcanic activity (short - term being the key phrase, after Church et al Nature 2005, and also http://www.llnl.gov/str/JulAug02/Santer.html)
You can also experience the desolation and beauty of the Valley of 10,000 smokes while at Katmai to see a wondrous area left by the largest volcanic eruption of the last century.
Barring any large volcanic eruption, I don't see any reason for the decadal trends to depart much from the anticipated ~ 0.2 ºC / decade.
If volcanic emissions were significant in a climate context, we'd see notable spikes in CO2 following some of the largest historical eruptions.
After a large volcanic eruption, the layer of sulfate aerosols in the stratosphere gets thicker, and we see, in the historic record, that the Earth cools down in response.
If you look at the average global response to large volcanic eruptions, from Krakatoa to Pinatubo, you would see that the global temperature decreased by only about 0.1 °C while the hypersensitive climate models give 0.3 to 0.5 °C, not seen in reality.
If you look at the the lower stratospheric temperature, you do see a large positive temperature perturbation immediately after the volcanic eruption (this is expected of course), but rather than returning to the same relatively constant temperature, it shifts to a new, lower temperature operating point.
You can see in Figure 3 that some of these chemistry - climate models do capture this overshoot behaviour following the effects of large volcanic eruptions.
Given the fact that internally the earth itself has large temperature changes which melts the upper mantle and deep crust producing volcanic eruptions at the surface, it is not difficult to see that the thermal energy involved and the mass of the earth itself, that the earth's own internal temperature fluctuations might have bigger effect on the atmosphere's temperature than the sun.
Then throw in massive volcanic eruptions and huge continent wide brush fires caused by volcanoes or meteor showers (both theories I have seen in the literature) and you have many events that could cause climate disruption on a large scale.
Similarly, if global temperatures drop for some reason (for example, a large volcanic eruption dumping massive amounts of aerosols into the air), we should expect to see water vapor concentrations decrease.
We'd expect to see the imprint of this large error in comparisons with observed surface temperature changes over the 20th century (37 - 42), and in comparisons with the observed cooling after large volcanic eruptions (30, 43, 44).
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