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From global warming to fluoride: Why do people deny science? The potent combination of our powerful intelligence with our massive reality denial has led to a dangerous world. Less obvious, but in the long term more dangerous, are threats resulting directly or indirectly from technological developments that have permitted us to increase our numbers well beyond the carrying capacity of the natural world.

More efficient agriculture and the invention of artificial fertilizers permitted humans to produce food sufficient to support numbers that would be unthinkable for other animals of our physical size. Public health measures, vaccinations, antibiotics, and other medical advances also permitted population numbers to explode. The world is overpopulated already and is becoming more so at an alarming rate. And although we pay lip service to the resulting problems, we do relatively little to address their root causes. Indeed, some religions continue to promote the unrestrained propagation of their flocks. Planet Earth is sick, with a bad case of “infection by humans.” In fact, as far as the other species on the planet are concerned, we humans are like the rapaciously invasive conglomerate of aliens called the Borg in the classic TV series “Star Trek” — a race that indiscriminately assimilates and takes over anything and everything it encounters.

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The motto of the Borg is “Resistance is futile.” And indeed, for all other species on Planet Earth, resistance is futile when faced with humans! The exceptions, of course, are the microbes that infect us (such as tuberculosis, HIV, and malaria), which are also spreading just fine, thank you. As explained by environmental activist Paul Gilding in “The Great Disruption”: “We have now reached a moment where four words—the earth is full—will define our times. This is not a philosophical statement; this is just science based in physics, chemistry and biology . Besides the very public efforts of Al Gore, many writers have spoken out about this vital issue, including Scientific American editor Fred Guterl.

Now, It’s Not Personal! But like it or not, meat-eating is becoming a problem for everyone on the planet. Ask people where they’d rank meat-eating as an issue of. Explore National Geographic. A world leader in geography, cartography and exploration.

But while this has become a popular topic of discussion, few are willing to make the major lifestyle changes necessary to reverse it. The government of the country that is one of the biggest per- capita culprits (the United States) now at least acknowledges the reality of global climate change—but still refuses to face up to the problem. The energy platforms of major political candidates for leadership positions in the United States carefully ignore or minimize attention to this politically charged issue. And the same is true of the other major contributors to the problem, such as those companies that extract more and more fossil fuels from the earth yet run misleading advertising campaigns that claim that they really do care about the environment. Even worse, the melting of Arctic ice has given many countries the impetus to prospect for more fossil fuels in that pristine wilderness.

Why is it that ordinary citizens do not sit up and take notice of the danger? Unfortunately, the focus remains mostly on “global warming” instead of on the bigger concern—that we are disrupting the planet’s climate in completely unpredictable ways. Because climate prediction includes a significant degree of scientific uncertainty, this has allowed skeptics to gain the upper hand and even corner some expert scientists into difficult positions. A friend in the climate research field privately admits that he and most of his colleagues are afraid to stand up and speak out because of the vituperative attacks and massive smear campaigns that they would inevitably suffer—as did Michael Mann and others. But much research indicates that as forests disappear and polar ice caps melt, etc., there are unpredictable feedback mechanisms that will make global warming increasingly difficult to tackle. Even more worrisome, there will likely be a tipping point after which continued warming may become irreversible, no matter what we do.

Of course, other scenarios are also possible. For example, it is plausible that we could instead tip the planet into an ice age. The Hollywood movie “The Day After Tomorrow” took a reasonably valid climate change model that is possible over a sixty- year span and instead told a story in which it happened in six weeks. This made it easy for viewers to deny the possibility that this could ever actually happen. During Bill Clinton’s successful bid for the presidency, one of his campaign aphorisms was “It’s the economy, stupid!” The point was that while strategists were considering many diverse and important political issues, the state of the economy was the single factor that was actually going to determine the outcome of the election.

In like manner, we humans are focusing on the wrong issues when it comes to the debate over global warming. The slogan should be “It’s local climate destabilization, stupid!” One does not need to be an expert to find convincing evidence that global temperatures are indeed rising, and that the climate is changing, likely due to human activities. Every one of the more than 1. There is increasing agreement that the Industrial Revolution ushered in a new climatic period, which Nobel Prize winner Paul Crutzen has called the Anthropocene. The frequency of extreme weather events across the world is increasing at a rate not previously seen since climate records began to be kept—and an ice- free Arctic sea may be years, not decades, away. However, despite the overwhelming body of data, it is unclear exactly what is going to happen in the future. Thus the mild- sounding term warming is too easy to pass off as being irrelevant to an individual (“So what?

I will just turn up my air conditioner!”). Instead of allowing complacency based on uncertainty, we need to look back at the history of climate on this planet and consider the potential consequences of human interference. Data from sources such as the Greenland ice core (from which it is possible to determine historical temperatures over relatively short time spans) indicate that the period until around ten thousand years ago was prone to wildly oscillating temperatures (similar data is available back to almost a million years ago). For example, twelve thousand years ago there were likely tens of feet of ice over what is now San Francisco and Washington, D. C., as well as over most of northern Europe. The less frequent and cyclical warm periods of the past could also be associated with temperature fluctuations, variations in ocean levels, and so on.

In contrast, the last ten thousand or so years have been one of the uncommon periods of relatively stable warm climate. Years ago I used to joke that this must be a consequence of humans having spread all across the planet at approximately that time, reaching all the way into South America and most other habitable parts of the world. In fact, this concept is now the basis of a current theory—that the diaspora of humans, and the associated burning of forests, the initiation of agriculture, and the elimination of most large animal species (beginning around ten thousand years ago) may have stabilized the climate and prevented its usual wanderings. Whatever the mechanism, we are living in an unusually stable period called the Holocene epoch.

It is only because of this stable climate that we have so successfully populated the world while optimizing our homes, facilities, and agriculture to suit a relatively predictable local climate in each location. So what the average human should fear is not global warming but rather local climate destabilization, i. This does not only mean unusually severe hurricanes and tornadoes, or unexpected droughts and flooding.

Such sad catastrophes affect only a small part of the world at any one time. Of even greater concern should be local changes that may seem trivial yet have a huge impact on our living conditions and economies.

Try a casual poll of your friends across the planet who have lived in the same place for a while, and ask, “How’s the weather been lately in your neck of the woods?” There is a high probability that the answer will include words such as “strange,” “unusual,” and “weird.” And in some cases your friends will not mention warming but rather unusual cold spells, or rain and snow that fell with unusual frequency at unexpected times. The general trend seems to be increasing dryness in previously dry areas and increasing wetness in previously wet areas. It will not take many more such changes to disrupt local economies and agriculture in a manner that destabilizes local societies. And the impact of local events can be global. For example, very high temperatures in Russia in 2.

The unprecedented 2. Thailand raised the costs of computer hard disks worldwide because some key local factories were damaged.

And in 2. 01. 2, the great drought in North America decimated the corn crop and ignited forest fires that destroyed many homes. Remarkably, the subject of climate change was never brought up by the moderators of the three U. S. It remained the big elephant in the room that everyone was conveniently ignoring. But as this is being written, the northeastern seaboard of the United States is still struggling to recover from the devastation wrought by the deadly hurricane Sandy. This so- called Frankenstorm was unprecedented in terms of its timing, path, and site of landfall. The hurricane was apparently unique in the annals of American weather history, and many climate scientists feel it is the latest manifestation of human- induced climate change. But the tragedy of Hurricane Sandy may have a silver lining.

Politicians whose constituents were directly affected began speaking out. New York’s governor, Andrew Cuomo, said in a news briefing the day after the hurricane hit: “There has been a series of extreme weather incidents. That is not a political statement. That is a factual statement .

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