Sentences with phrase «volcanic activity since»

This is apparent when comparing atmospheric CO2 levels to volcanic activity since 1960.

Not exact matches

Without human interference, the Earth's orbit and tilt, a slight decline in solar output since the 1950s and volcanic activity would have led to global cooling.

If the forcing due to a certain change of solar and / or volcanic activity should have been higher than previously assumed, this wouldn't change the weight of these factors much, neither for the Esper / Moberg period nor the period since 1950.

«Since the giant sodium nebula that they create varies over periods of months to years, the source of the variability is probably not the symmetrical sputtering cloud, but the streaming - wake source that waxes and wanes with volcanic activity on Io,» explained Jody Wilson, CSP senior research associate and a study co-author.

They noticed that since September 2010, Io's volcanic activity has been globally quiescent.

Since October 2010, Arenal's volcanic activity appears to be decreasing and explosions have become rare, with no explosions reported between December 2010 and October 2012.

Volcanic activity has been recorded at Mount Agung, located 75 kilometers from the resort hub of Kuta, since August last year, the first time since 1963.

Mt.Agung's volcanic activity has continued to increase since it erupted on Tuesday.

Despite the volcanic activity at Mount Agung since September, Bali is still considered safe.

Continuously erupting since 1983, Kilauea Volcano will be viewed by air with emphasis on the most current areas of volcanic activity during Kapohokine Adventures» «Circle of Fire Helicopter Tour.»

If the forcing due to a certain change of solar and / or volcanic activity should have been higher than previously assumed, this wouldn't change the weight of these factors much, neither for the Esper / Moberg period nor the period since 1950.

You provide no evidence of some substantial increase in volcanic and / or earthquake activity in the global warming period since 1900, or the more recent global warming period of since 1970.

Rob — I'm not sure why you think the human origin of post-industrial CO2 increases is a subject of much uncertainty, since the conclusion resides in the convergence of multiple lines of evidence that include measurements of C14, C13, C12, atmospheric oxygen, volcanic activity, and records of industrial emissions.

The Little Ice Age following the Medieval Warm Period ended due to a slight increase in solar output (changes in both thermohaline circulation and volcanic activity also contributed), but that increase has since reversed, and global temperature and solar activity are now going in opposite directions.

Volcanic activity on the Earth is described by special annual indices available since 1500.

Precession / obliquity — Precession very favorable while obliquity is lessening and becoming more favorable as compared to the Holocene Optimum period of time and this is why I think the global temperatures in general have been on a decline overall since the Holocene optimum however with fits and starts due to solar activity changes / volcanic activity and enso superimposed upon this general trend.

ENSO should have been considered as part of the model uncertainty and since there hasn't been any volcanic activity that would have been considered «significant», unless the models were assuming there should have been some, they would be high would they?

Note: the Foster and Rahmstorf results have been incorporated into the rebuttals to It's the sun (Intermediate and Advanced), A drop in volcanic activity caused warming, It's El Niño, Global warming stopped in [insert year], It hasn't warmed since 1998, and It's cooling

You aren't thinking about the warming period early last century, because we know it was a relatively brief period, and so lacked huge significance, and was caused by a combination of CO2 emissions, high solar activity and low volcanic activity and the later two factors haven't been apparent since the 1970's modern warming period.

Modellers were able to «peek at the answer» since they could not only observe inputs to the climate system (such as historical greenhouse gas levels, volcanic activity, solar changes and so forth) but also the simulation targets, namely average temperatures, when tuning their models.

We have competing hypothetical answers to why the climate has warmed since the 1970s (volcanic activity, cosmic rays, solar activity, etc, and CO2 emissions) and CO2 emissions involves making the fewest assumptions, and is the simplest most cogent evidence based explanation, and the most consistent with the full range of evidence but Victor just can't work it out, because he doesn't understand anything he reads.