A few years ago I had lunch with Sallie Baliunas, the Harvard astronomer, who laid out in some detail the reasons she believed that terrestrial global warming war related to solar output. That sort of argument, even though expressed by a world-class solar expert, was ignored by the "climate change" activists on the grounds that there was insufficient evidence to support it. Well, evidence that variations in solar output are driving climate change is beginning to accumulate. in recent months attention has been focused on Mars where there seems to be clear evidence of global warming taking place.
Now Reuters reports:
NASA scientist Lori Fenton and colleagues, reporting this week in the journal Nature, now believe variations in radiation from the surface of Mars are fuelling strong winds that stir up giant dust storms, trapping heat and raising the planet's temperature.
....
By studying changes in light reflected from the surface of Mars -- a measure known as an object's albedo -- they predict the red planet has warmed by around 1 degree Fahrenheit (0.65 degree Celsius) from the 1970s to the 1990s, which may in part have caused the recent retreat of the southern polar ice cap.
Read it
here.
So, both Earth and Mars are experiencing global warming at about the same rate at the same time. Is it not reasonable to conclude that a major element in terrestrial climate change is variation in solar output?
Why yes is is! But, reasonability is not a characteristic of the Left-wing activists who are driving the global warming hysteria. They are not about to weaken their anthropogenic model of climate change because it justifies their calls for fundamental social and political change [which, for them, is what the argument is really all about].
