periodic small ( less than 0.1 percent peak - to - trough ) oscillations(passive) caused byperiodic small ( less than 0.1 percent peak - to - trough ) oscillations
A longer - lasting effect(passive) is caused byA longer - lasting effect
leakage of solar dust into Earth ’s atmospherecausesleakage of solar dust into Earth ’s atmosphere
in the mid nineteenth century and has been fairly constant but one solar astronomer , looking back through recordswas discoveredin the mid nineteenth century and has been fairly constant but one solar astronomer , looking back through records
a similarly periodic variation in the Earth 's magnetic fieldcauseda similarly periodic variation in the Earth 's magnetic field
in the change of the width of tree rings in cycleswas discoveredin the change of the width of tree rings in cycles
a small but periodic variation in solar radiance on the Earth ’s surfacecausesa small but periodic variation in solar radiance on the Earth ’s surface
an average temperature fluctuation of about +causesan average temperature fluctuation of about +
an illumination change of less than 0.1 %causesan illumination change of less than 0.1 %
cloud cover(passive) being influenced bycloud cover
65 years earlierdiscovered65 years earlier
economic fluctuationscauseseconomic fluctuations
a small but detectable oscillation in the Earth ’s temperature ... but it is definitively not responsible for the long term warming seen over the past century and continuingcreatesa small but detectable oscillation in the Earth ’s temperature ... but it is definitively not responsible for the long term warming seen over the past century and continuing
cycles of human mass activity ( riots , rebellions , revolutions , and even warcreatescycles of human mass activity ( riots , rebellions , revolutions , and even war
global warming and coolingcausesglobal warming and cooling
asteroid # 187 Lambertadiscoveredasteroid # 187 Lamberta