Sentences with phrase «significant changes in solar activity»

All evidence suggests that significant climate changes like the LIA, and the Medieval Warm Period that preceded it, are the result of significant changes in solar activity.

Not exact matches

And we know that changes in solar activity have made significant changes in climate.

Flood layer frequency in the Ammersee sediment record depicts distinct multi-decadal variations and significant correlations to a total solar irradiance reconstruction (r = − 0.4, p < 0.0001) and 14C production rates (r = 0.37, p < 0.0001), reflecting changes in solar activity.

Thanks for publishing this, there are folks who denigrated the work of scientists that claimed a solar - climate (temperature) link because the variability in solar energy output just wasn't enough to explain the temperature swings, and perhaps they now realize that there could be another mechanism - similar to a transistor where small changes in gate voltage can affect large changes in power transmission - whereby solar activity can create significant effects on temperature.

Thus it appears that, provided further satellite cloud data confirms the cosmic ray flux low cloud seeding hypothesis, and no other factors were involved over the past 150 years (e.g., variability of other cloud layers) then there is a potential for solar activity induced changes in cloudiness and irradiance to account for a significant part of the global warming experienced during the 20th century, with the possible exception of the last two decades.

In particular, the authors find fault with IPCC's conclusions relating to human activities being the primary cause of recent global warming, claiming, contrary to significant evidence that they tend to ignore, that the comparatively small influences of natural changes in solar radiation are dominating the influences of the much larger effects of changes in the atmospheric greenhouse gas concentrations on the global energy balancIn particular, the authors find fault with IPCC's conclusions relating to human activities being the primary cause of recent global warming, claiming, contrary to significant evidence that they tend to ignore, that the comparatively small influences of natural changes in solar radiation are dominating the influences of the much larger effects of changes in the atmospheric greenhouse gas concentrations on the global energy balancin solar radiation are dominating the influences of the much larger effects of changes in the atmospheric greenhouse gas concentrations on the global energy balancin the atmospheric greenhouse gas concentrations on the global energy balance.

One last point is solar activity in order to accomplish a significant climate change has to do two things.

Oleg Sorokhtin of the Russian Academy of Sciences Institute of Ocean Studies, and many other Russian scientists maintain that global climate depends predominantly on natural factors, such as solar activity, precession (wobbling) of the Earth's axis, changes in ocean currents, fluctuations in saltiness of ocean surface water, and some other factors, whereas industrial emissions do not play any significant role.

GCMs fail because the IPCC and the model - makers refuse to admit that changes in solar activity have a significant effect on climate change.

A statistically significant signature of multi-decadal solar activity changes in atmospheric temperatures at three European stations, Vladimir Kossobokov, Jean - Louis Le Mouel and Vincent Courtillot, 05/2010, Journal of Atmospheric and Solar - Terrestrial Physics, Volume 72, Issues 7 - 8, pp. 595 solar activity changes in atmospheric temperatures at three European stations, Vladimir Kossobokov, Jean - Louis Le Mouel and Vincent Courtillot, 05/2010, Journal of Atmospheric and Solar - Terrestrial Physics, Volume 72, Issues 7 - 8, pp. 595 Solar - Terrestrial Physics, Volume 72, Issues 7 - 8, pp. 595 - 606

We know that there are significant changes of much longer term in the overall level of solar activity.