We hear a lot about how we are supposedly in a climate crisis and how The Science tells us we are about to succumb to global boiling. Most climate activists claim that we must cut emissions by spending more money on windmills and solar panels or we will all burn to a crisp.
I would describe myself as a lukewarmer, by which I mean that I acknowledge the earth is warming and that human emissions of CO2 have made some contribution to that warming. However, it is also true that the climate has changed dramatically without human intervention; clearly, there are other causes of climate change too.
The strategy of reducing emissions of greenhouse gases to Net Zero is classified as a “mitigation strategy” in the parlance of the IPCC. The alternative strategy is adaptation which means taking measures to adjust to climate change such as building flood defences, irrigation systems or developing new strains of crops to cope better with changing weather patterns. Most spending effort in the West is geared towards mitigation. But, what if the Net Zero cure is worse than the disease? What if mitigation is less effective than adaptation?
Mitigation Drawbacks
The mitigation strategy has significant drawbacks. First, mitigation only works if CO2 is the main climate control knob. But we know this cannot be the case because we can clearly see that temperatures have changed significantly over past millennia, as illustrated in Figure 1 below sourced from Figure 7.1 of the IPCC’s First Assessment report. These changes cannot have been caused by humans or our CO2 emissions.
Second, mitigation can only work if everyone else slashes emissions too and we can see from Figure 2 (from Our World in Data) that this is not happening.
Moreover, there are plenty of potential climatic events that could occur that we ought to be prepared for, and which will require energy and ingenuity to deal with. For example, we could see another Mount Tambora-like eruption which ejected about 40km2 of material into the atmosphere and caused a reduction in global temperatures. This led to 1816 being termed the Year Without a Summer, where European summer temperatures were the lowest on record and led to an agricultural disaster with widespread food shortages and famine.
Read More: The Net Zero Cure is Far Worse Than the Disease
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