Mind you, the planet has already warmed 1 degree Celsius and we’ve only recently seen just how much damage even that amount of added heat can produce. Scientists generally agree that, to avert such catastrophic outcomes, global warming must not exceed, at worst, 2 degrees Celsius over pre-industrial levels - and preferably, no more than 1.5 degrees Celsius. And that, in turn, most scientists agree, is a recipe for catastrophically irreversible changes to the planetary ecosphere, including the kind of sea level rise that will inundate most American coastal cities (and many others around the world) and the sort of heat, fire, and drought that will turn the American West into an uninhabitable wasteland. According to the UN’s analysis, even if all 200 signatories were to abide by their pledges - and almost none have - global temperatures are likely to rise by 2.7 degrees Celsius (nearly 5 degrees Fahrenheit) above pre-industrial levels by century’s end. The United Nations then issued a report on the likely impact of pledges already made by the nations that signed the 2015 Paris Climate Agreement (from which President Trump withdrew in 2017 and which the US has only recently rejoined). That harsh reality was made clear in September. If the planet’s two “great” powers refuse to cooperate in a meaningful way in tackling the climate threat, we’re done for.

However, no combination of these, even if carried out, would prove sufficient to prevent global disaster - not as long as China and the US continue to prioritize trade competition and war preparations over planetary survival. President Biden’s representatives will tout his promise to promote renewable energy and install electric-car-charging stations nationwide, while President Macron of France will offer his own ambitious proposals, as will many other leaders. Of course, politicians, scientific groups, and environmental organizations will offer plans of every sort in Glasgow to reduce global carbon emissions and slow the process of planetary incineration.

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