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Twelve More Years To Do Nothing

The future is changing, with or without us.

Human activities are estimated to have caused approximately 1.0°C of global warming above pre-industrial levels with a likely range of 0.8°C to 1.2°C. Global warming is likely to reach 1.5°C between 2030 and 2052 if it continues to increase at the current rate (high confidence). — IPCC

To keep global warming to 1.5 degrees, the report says that human emissions of carbon dioxide must fall dramatically: by about 45 percent from 2010 levels by 2030, and to “net zero” around 2050. The real situation is worse than that.

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The magnitude of the changes in climate effects that would be produced by the least stringent action alternative (Alternative 1) by the year 2100 is roughly a 0.6 ppm higher concentration of CO2, three thousandths of a degree increase in temperature rise, a small percentage change in the rate of precipitation increase, about 0.06 centimeter (0.02 inch) of sea-level rise, and an increase of 0.0004 in ocean pH.— NHTSA

“The amazing thing they’re saying is human activities are going to lead to this rise of carbon dioxide that is disastrous for the environment and society. And then they’re saying they’re not going to do anything about it,” said Michael MacCracken, who served as a senior scientist at the U.S. Global Change Research Program from 1993 to 2002.

Avoiding overshoot and reliance on future large-scale deployment of carbon dioxide removal can only be achieved if global CO2 emissions start to decline well before 2030 (high confidence) — IPCC

Alternative 7, the lowest CO2 emissions alternative, would result in CO2 concentrations of 687.4 ppm, an increase of 0.15 ppm compared with the No Action Alternative. — NHTSA

You have to wonder why the administration made such a stark admission. MIT Sloan School of Management professor John Sterman explained it this way:

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The warming from the pre-industrial period to the present will persist for centuries to millennia and will continue to cause further long-term changes in the climate system, such as sea-level rise, with associated impacts (high confidence)….

— IPCC

We passed that peak point for conventional fossil sources around 2005, but kept going, moving into the domain of more expensive, still marginally affordable, unconventional sources (oil shale, tar sands, fracked gas). Now unconventional sources, along with what remains of coal and sweet crude, are being exhausted more quickly than ever before, their discovery, extraction and refining costs ratcheting up but subsidized to the tune of $5.6 trillion per year, not counting military adventures and foreign intrigues (add another trillion for just the US military). At some point the unconventionals, like the conventionals, will move over into the “unaffordable” column because the Paris Agreement, like the new IPCC report, puts subsidies on death watch, and without those they are, each and every one eventually, money losers for those who mine and drill. When that process will start is anyone’s guess. For now, buying politicians is a better business model for oil companies than exploring biofuels.

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Pathways limiting global warming to 1.5°C with no or limited overshoot would require rapid and far-reaching transitions in energy, land, urban and infrastructure (including transport and buildings), and industrial systems (high confidence). These systems transitions are unprecedented in terms of scale, but not necessarily in terms of speed, and imply deep emissions reductions in all sectors, a wide portfolio of mitigation options and a significant upscaling of investments in those options (medium confidence).— IPCC

Despite what modern herdsmen might tell you about the power of managed grazing to store carbon in grassland soils, nothing matches trees when it comes to socking away greenhouse gases. Even when the leaves have dropped for the winter, leaving only bare bristles raking the sky, they are still atmospheric scrub brushes. At their roots mycelia never sleep, transporting carbon exudates below erodible soil crusts, snow and respiring humates.

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Air Burner turning forestry slash to biochar — courtesy Kelpie Wilson
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Written by

Emergency Planetary Technician and Climate Science Wonk — using naturopathic remedies to recover the Holocene without geoengineering or ponzinomics.

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