The Nation posted an article today about some scientific information that is causing some problems for those who believe in global warming.
The article reports:
The sun will go into “hibernation” mode around 2030, and it has already started to get sleepy. At the Royal Astronomical Society‘s annual meeting in July, Professor Valentina Zharkova of Northumbria University in the UK confirmed it – the sun will begin its Maunder Minimum (Grand Solar Minimum) in 15 years. Other scientists had suggested years ago that this change was imminent, but Zharkova’s model is said to have near-perfect accuracy.
So what is a “solar minimum”?
Our sun doesn’t maintain a constant intensity. Instead, it cycles in spans of approximately 11 years. When it’s at its maximum, it has the highest number of sunspots on its surface in that particular cycle. When it’s at its minimum, it has almost none. When there are more sunspots, the sun is brighter. When there are fewer, the sun radiates less heat toward Earth.
But that’s not the only cooling effect of a solar minimum. A dim sun doesn’t deflect cosmic rays away from Earth as efficiently as a bright sun. So, when these rays enter our atmosphere, they seed clouds, which in turn cool our planet even more and increase precipitation in the form of rain, snow and hail.
This does not sound like fun. Global cooling has a negative impact on agriculture, it increases the need for fossil fuels (to keep people warm), and it generally makes life uncomfortable in many areas of the earth.
The article further reports:
The last time we became concerned about cooler temperatures – possibly dangerously cooler – was in the 1970s. Global temperatures have declined since the 1940s, as measured by Pacific Decadal Oscillation. The PDO Index is a recurring pattern of ocean-atmosphere climate variability centred over the Pacific Ocean. Determined by deep currents, it is said to shift between warm and cool modes. Some scientists worried that it might stay cool and drag down the Atlantic Decadal Oscillation with it, spurring a new Ice Age. The fear was exacerbated by the fact that Earth has been in the current inter-glacial period for 10,000 years (depending on how the starting point is gauged).
If Earth were to enter the next Ice Age too quickly, glaciers could advance much further south, rainforests could turn into savannah, and sea levels could drop dramatically, causing havoc.
The BBC, all three major American TV networks, Time magazine and the New York Times all ran feature stories highlighting the scare. Fortunately, by 1978 the PDO Index shifted back to warm and the fear abated.
Climate science vs the sceptics
By the 1990s the UN’s Intergovernmental Panel on Climate Change (IPCC) had formed the “97 per cent consensus”. The consensus was that Earth was warming more than it should, not just due to natural causes but also human activity. This was termed Anthropogenic Global Warming. The culprit was identified as carbon dioxide generated from the burning of fossil fuels.
I wonder if burning more fossil fuels would prevent global cooling. The bottom line here is simple–we don’t know everything we think we know. My solution is simple–do all you can to keep pollution levels low, and live your life in the best way possible. Don’t allow government officials selling panic to take more of your freedoms. There is nothing wrong with conserving energy, but we don’t have to be slaves of the government in doing it. Americans live in a free country, and it is up to us to keep it free. As I said, live with a reasonable carbon footprint, but don’t go into panic mode. When was the last time you saw someone screaming “the sky is falling–it’s global warming” give up their private jet, their limousine, or buy a small, energy efficient house? When that happens, I will pay attention.