A research team from the Ottawa-Carleton Geoscience Centre has analyzed 5,000 years worth of mud from the bottom of fjords in Western Canada. Variations in concentration of fossilized fish scales and diatoms in the mud layers show strong and consistent patterns of marine productivity that correspond to cycles of solar output. In line with many other studies, measuring things like Russian tree rings or water levels in the Nile valley, this project demonstrates that the sun drives climate change.
However, despite this clear and repeated correlation, variations in incoming solar energy are not sufficient to cause the climate changes observed in the mud record. Moreover, increases in direct solar input are not large enough to cause the past century’s modest warming. For the sun to be a primary driver of climate change, there has to be an ‘amplifier’.
The ‘X factor’ is the change in cloud concentrations caused by variations in the intensity of galactic cosmic radiation in the atmosphere. Increased output from our sun leads to a stronger solar wind, which prevents cloud-enhancing cosmic rays from reaching the Earth’s atmosphere. More sunspots = Fewer cosmic rays = Less cloud cover = Global Warming. QED.
So there we have it. High-quality evidence stretching back far beyond the start of our industrial ‘civilisation’ suggests that solar activity is directly and indirectly responsible for both global warming and global cooling. Contrary to what Al Gore will tell you, the science of climate change is far from settled. While the boffins beaver away in the backroom, I’ll carry on turning off the lights when I leave the room, just in case. It can’t do any harm.
‘Read the Sunspots‘ – R. Timothy Patterson, Financial Post
‘Cosmoclimatology: a new theory emerges‘ – Henrik Svensmark