Climate Change: Overlooking the Details

You can’t really call it a lie, but when people who should know better spread misinformation, it feels like the same thing. The latest example came a few days ago on the national news when a reporter said the Paris Climate Accords “set global standards” for emissions. This is clearly incorrect. The agreement consists of a compilation of NDCs, Nationally Determined Contributions. They are not a global standard but targets set by each individual country, i.e., nationally determined, with no enforcement mechanism for those who fall short and no authority to reject a proposal as inadequate. (Follow this link to access all of the individual NDCs. See this link for a Washington Post article praising the “few countries” that are meeting the standards they set for themselves.)

This is a common misunderstanding of the agreement that leads to unnecessary handwringing over the fact that the United States is no longer a signatory. Despite that withdrawal, according to the EPA the green house gas emissions by the US are decreasing and are lower today than they were in 1996.

Meanwhile, while everyone is worrying about carbon dioxide, criticizing all the SUVs on the roads, a far more powerful greenhouse gas is flying under the radar of public interest. The BBC warns, “It's the most powerful greenhouse gas known to humanity, and emissions have risen rapidly in recent years.” Sulfur hexafluoride (SF6) is a gas used by the electrical industry in the switching equipment in power stations, wind turbines and sub-stations to prevent short circuits, fires and other accidents. “In terms of warming potential, SF6 is 23,500 [times] more powerful than CO₂."

It is intended by design to remain contained within the insulator, but problems arise when leaks occur and evidence shows that they are occurring regularly as the global use of the gas “is expected to grow by 75% by 2030.” BBC puts the amount of leaking in the UK alone at the equivalent of an “extra 1.3 million cars on the road.” And the reason for the growth is a need for more of the switching equipment driven by the increase in sustainable power, such as wind and solar.

Here in the US, the EPA is aware of the problem, and Pacific Power & Gas is one of the utilities with plans to solve it. Fixing a single SF6 leak has an average cost of $25,000, so they are looking for alternatives and expect to have the problem solved in their business region by 2030.

Make no mistake; with so many more sources, carbon dioxide is still a far larger problem than SF6. But where is the balance? Why do we hear about the benefits of wind and solar while the drawbacks are ignored? Why do we hear the “dangers” of nuclear power while its remarkably  safe history is glossed over? Why are we urged to panic over unsigned Climate Accords when the truth is far more nuanced?