Day of the Cat, 43rd Day of Childwinter, 526 M.E. (Aldebaran): The front page of the EPA's website proudly announced that, at the Stable Genius' direction, the agency just took the "single largest deregulatory action in U.S. history." They did it, folks - they repealed the Endangerment Finding that ruled that greenhouse gases are a threat to human health and the environment, and thus broke the back of the U.S. climate-change regulatory framework. The announcement, written in a highly partisan and unscientific manner, reads as if it were written by the oil and gas lobby, which it probably was.

The Endangerment Finding was the legal basis that recognized greenhouse gases as a public-health threat, allowing the EPA to regulate the gases under the Clean Air Act. The finding meant that the EPA could set and enforce emissions standards and could defend their actions in court. That legal backbone shaped everything from power-sector rules to vehicle standards, and created the framework in which emissions reductions were expected. Without the finding, EPA authority is narrower, more fragmented, and far easier to challenge.

Meanwhile, as The Guardian pointed out this week, continued global warming could trigger an irreversible course of multiple climate tipping points and feedback loops, creating a hellish "hothouse Earth." In short, as ice, which reflects away much of the incoming solar heat, retreats and more of the underlying bedrock is exposed, the rock absorbs more heat and further melts the ice, which exposes more bedrock, which melts more ice, and so on and so forth in a feedback loop. A tipping point is when the system reaches a point where a feedback loop can't be avoided and may already be occurring in the Greenland and West Antarctic ice sheets. Permafrost, mountain glaciers, and the Amazon rain forest appear to be on the verge to tipping, and other potential tipping points include loss of polar sea ice, retreat of sub-Arctic forests, and collapse of the Atlantic meridional overturning circulation (AMOC), the system of ocean currents that strongly influences global climate. 

Runaway feedback loops would lock the world into a climate far worse than the 2-3°C temperature rise the world is on track to reach. The climate would be very different than the conditions of the past 11,000 years, during which the whole of human civilization developed.

Human activities have massively upset the global balance of greenhouse gases. The planet has some buffering capacity for carbon imbalances, but the geological cycle for carbon is on the order of millions of years. We can't put tens of millions of years worth of CO₂ into the atmosphere over the span of a few centuries and expect the planet to be able to adapt without serious consequences. There's no way that isn't going to massively upset the ecological and chemical balances we rely on to keep us and everything around us alive.

Repealing the Endangerment Finding and effectively limiting the government's ability to restrict the continued emission of CO₂ is literally the worst thing to do at this fraught moment. The EPA's justification of their move claims the Finding was "massively unpopular" (it probably was among the oil and gas lobbyists influencing the agency), and that repeal would somehow save consumers billions of dollars and give them more choice (the choice to buy big, gas-guzzling vehicles that emit tons of carbon dioxide). 

That all seems colossally short sighted. An unlivable planet with a unstable climate is even more massively unpopular, and the costs associated with hurricanes, floods, droughts, and crop losses will dwarf the money consumers may potentially save in the short term.

It's a bad day for planet Earth.

One final note on the colossal stupidity of this decision. Interior Secretary Doug Burgum said in an interview that repealing the finding would boost the coal industry.  “CO₂ was never a pollutant,” he declared. “The whole endangerment thing opens up the opportunity for the revival of clean, beautiful American coal.”

"Clean coal" was a catch-all term for a range of potential technologies, none of which have yet been implemented, to burn coal without emitting the carbon to the atmosphere. You know, scrubbers, closed-loop systems, and so on. But somewhere along the line, the Stable Genius heard the term "clean coal," and mistook it for a term of endearment of coal as it is without those technologies. "Good, clean coal," he says wistfully as if it were cool, running water, and now his administration knows they can call the dirty fossil fuel "clean coal" without fear of contradiction.