TOTAL SOLAR IRRADIANCE TREND DURING SOLAR-CYCLE-21 AND SOLAR-CYCLE-22

Results from Active Cavity Radiometer irradiance Monitor (ACRIM) exper iments show an upward trend in total solar irradiance of 0.036 percent per decade between the minima of solar cycles 21 and 22. The trend fo llows the increasing solar activity of recent decades and, if sustaine d, could raise global temperatures. Trends of total solar irradiance n ear this rate have been implicated as causal factors in climate change on century to millennial time scales.