Before you can show why someone is wrong, you have to first prove that they are wrong. Right now, voices on the secular left are crying out that we have only 12 years to live unless we empower the federal government to completely revamp how Americans generate and consume electricity, Let’s take a look at their reasons for their views, and then see where their rhetoric leads.

Let’s start with this article from Reason about the doomsday predictions of darling of the left Greta Thunberg:

Such catastrophic thinking is similar to AOC’s equally apocalyptic statement that “The world is gonna end in 12 years” and Warren’s contention that “we’ve got, what, 11 years, maybe” to cut our emissions in half to save the planet.

As Reason‘s Ronald Bailey has documented, such predictions stem from a fundamental misreading of a 2018 report from the Intergovernmental Panel on Climate Change (IPCC). That report offered up predictions in the growth of global economic activity, how it might be affected by climate change, and how reducing greenhouse gases might increase planetary GDP. It did not specify anything like a 10- to 12-year window after which extinction or amelioration is inevitable.

OK, but a lot of people are listening to the rhetoric of the environmental extremists, and they DO believe it. It doesn’t matter that they don’t have a background in science. They just believe what they hear. And some of them have decided to take matters into their own hands to stop global warming – by stopping the people who create emissions, with violence.

Quilette explains:

For over 50 years, environmentalists have argued that a significant down-sizing of American living standards is required to prevent environmental catastrophe. They have been attacking the American lifestyle since the 1960s, and Walmart since the 1990s. The El Paso shooting suspect named his manifesto “The Inconvenient Truth,” a title nearly identical to the 2006 documentary about Al Gore’s slideshow on global warming. In it, Gore says: “The truth about the climate crisis is an inconvenient one that means we are going to have to change the way we live our lives.”

[…]The suspect clearly states that his decision to kill immigrants was, in significant measure, because of their impact on the natural environment. “Of course these migrants and their children have contributed to the problem, but are not the sole cause of it,” he writes. “The American lifestyle affords our citizens an incredible quality of life.”

The El Paso suspect said he was partly inspired by the suspected shooter of Muslim immigrants in New Zealand in March, who also made clear in a manifesto that environmental concerns motivated his anti-immigrant ones. “Why focus on immigration and birth rates when climate change is such a huge issue?” the New Zealand shooting suspect asks. “Because they are the same issue, the environment is being destroyed by overpopulation, we Europeans are one of the groups that are not overpopulating the world.”

It is not surprising that the two manifestos echoed environmentalist ideas. For two centuries, prominent scientists, conservationists, and journalists, have blamed immigrants, the poor, and non-whites for their degradation of the natural environment. Much of what we call “environmentalism” is simply a repackaging of the ideas of 19th-century economist Thomas Malthus. He believed overpopulation of the poor would deplete resources, and that the ethical thing to do was let the poor die of hunger and disease to prevent more hunger and disease in the future. “Instead of recommending cleanliness to the poor, we should encourage contrary habits,” he wrote, “and court the return of the plague.” The British government and media used Malthus’ ideas to justify the policies that led to mass starvation in Ireland from 1845 to 1849.

After the Second World War, leading conservationists embraced Malthus’ view that overpopulation would result in resource depletion. Their concerns were directed at poor non-whites in other countries, particularly India, even though North Americans and Europeans consumed and produced an order of magnitude more resources and pollution. Anti-humanist environmentalism came full bloom in Stanford biologist Paul Ehrlich’s 1968 Sierra Club book, The Population Bomb, which used dehumanizing language similar to that used by today’s anti-immigrant activists. In the opening pages of his book, Ehrlich depicted poor people in India as animals, “screaming…begging…defecating and urinating.”

More recently, environmentalists and scientists concerned about overpopulation tried to get the Sierra Club to oppose immigration from Mexico and other Latin American countries, expressing the concern that, by adopting an American lifestyle, immigrants will use up supposedly scarce natural resources—the same argument used by the El Paso shooting subject—and increase pollution.

Both the El Paso and New Zealand suspects echo the exaggerated rhetoric of environmentalists. “Nothing is conserved,” wrote the New Zealand shooting suspect. “The natural environment is industrialized, pulverized and commoditized.” The El Paso suspect blames “consumer culture” for plastic and electronic waste, and “urban sprawl” for environmental degradation.

So, when you see people shooting at immigrants, the reason they don’t like immigrants is not because of their race. The eco-terrorists don’t like immigrants because the eco-terrorists think that they have too many children. And concern about the world becoming overpopulated is a core belief of global warming alarmists. That’s why you keep reading stories about how the secular left thinks that it is going to save the planet by not having children.

Naturally, eco-terrorists on the secular left will be in favor of abortion. I have talked to mainstream Democrats in my office who want to use government coercion, including forced abortions, to stop “high” birth rates in poorer countries. But what if people with high birth rates won’t have the abortions that the eco-terrorists want them to have? Well, that’s when the eco-terrorists pick up weapons and go on a shooting spree. And that’s what all this unhinged rhetoric about global warming doomsday predictions produces. The secular left complains about the very mass shootings that are caused by their global warming alarmism.

And guess what? The public schools have been turning out millions and millions of environmental radicals for the past few decades. So, we’re probably going to be see more eco-terrorism, rather than less, in the near term.