Dig in Deep

Check out this article by David Evans: Are Carbon Emissions the Cause of Global Warming? This is very revealing, but I can guarantee that you won’t see much of this research in the media.

Ice Core Data Reverses — 2003

It was the early, low resolution ice core data first gathered in 1985 that convinced the world that CO₂ was the culprit: CO₂ levels and temperature rose and fell in lockstep over the last half a million years, to the resolution of the old ice core data (results from 1985–2000, data points over a thousand years apart). It was assumed (bad assumption #1) that CO₂ levels controlled the world’s temperature.

After further research, new high-resolution ice core results (data points only a few hundred years apart) in 2000–2003 allowed us to distinguish which came first, the temperature rises or the CO₂ rises. We found that temperature changes preceded CO₂ changes by an average of 800 years. So temperature caused the CO₂ levels, and not the other way around as previously assumed. The world should have started backpedaling away from blaming carbon emissions in 2003.

Greenhouse Signature Missing — 2007

Second crucial point, August 2007: There are several possible causes of global warming, and they each warm the atmosphere at different latitudes and altitudes — that is, each cause will produce a distinct pattern of hot spots in the atmosphere, or “signature.” The greenhouse signature is very distinct from the others: warming due to greenhouse would cause most warming in the tropics at about 10 km up in the atmosphere:

Theoretical Greenhouse Signature (UN climate models)

As of August 2007, we’ve measured where the warming is occurring in a fair bit of detail, using satellites and balloons. The observed signature is nothing like the greenhouse signature. The distinct greenhouse signature is entirely missing:

Observed Warming (Hadley Centre radiosonde observations 2006, confirmed by more measurements published in 2007)

There is no hotspot in the tropics at 10 km up, so now we know that greenhouse warming is not the (main) cause of global warming — so we know that carbon emissions are not the (main) cause of global warming.

Evans then goes on to describe why the original models were wrong – it was assumed that higher temperatures would mean more rainfall, and more high cloud cover that would intensify the warming effect. Instead, observations reveal that this cloud cover has actually lessened.

He also presents data that shows that the warming trend has waned since 2001. I have heard this from other sources as well, including climatologists who have predicted a natural cooling period will occur within the next 10 years.

To those who believe that the currently predominant global warming hysteria is accurate: please consider that there is more scientific evidence coming out that is contradicting the old evidence that the global warming hysteria is based on. The scientific landscape surrounding this is changing, despite Gore’s claims that it is “settled.”