It is a tricky concept but the idea is that a “quiet” Sun, one with little sunspot activity tends to result in cooler conditions on Earth than a “busy” Sun, one with many sunspots and warmer conditions on Earth. (Sunspots are magnetic storms on the surface of the Sun and the core aspect of our weather forecasts.) So, the theory expressed above is that while the Sun is quiet (now), the greenhouse gases are building up in our atmosphere, warming it/us/the climate (now). When the Sun’s quiet period is over in a couple of decades or so and sunspot activity returns, the heat created by sunspots will, effectively, merge with the increased heat of greenhouse gases. … and global temps get boosted for several years (or decades)…until the Sun quiets down again.
See the chart: the red spikes of Maunder Min show a quiet, or cool period; the blue spikes represent active sunspot periods, with increased heat on Earth. (We’ll admit that “red” usually means hot and “blue” usually indicates cool, but not this time; we did not create the chart and it is a very well-known/used representation.) Hope this helps.
It is a tricky concept but the idea is that a “quiet” Sun, one with little sunspot activity tends to result in cooler conditions on Earth than a “busy” Sun, one with many sunspots and warmer conditions on Earth. (Sunspots are magnetic storms on the surface of the Sun and the core aspect of our weather forecasts.) So, the theory expressed above is that while the Sun is quiet (now), the greenhouse gases are building up in our atmosphere, warming it/us/the climate (now). When the Sun’s quiet period is over in a couple of decades or so and sunspot activity returns, the heat created by sunspots will, effectively, merge with the increased heat of greenhouse gases. … and global temps get boosted for several years (or decades)…until the Sun quiets down again.
See the chart: the red spikes of Maunder Min show a quiet, or cool period; the blue spikes represent active sunspot periods, with increased heat on Earth. (We’ll admit that “red” usually means hot and “blue” usually indicates cool, but not this time; we did not create the chart and it is a very well-known/used representation.) Hope this helps.