Saturday, April 1, 2017

A breathtaking new take on the air we breathe

The federal Clean Air Act, passed in 1970 and amended in 1977 and 1990, grants one state and one state only, that being California, the right to formulate vehicular emissions standards stricter than those of the EPA. That privilege is owing to a distinction California would rather not have, that of having, in the Los Angeles basin and the San Joaquin Valley, some of the nation’s dirtiest air. Other states are free to adopt California’s standards if they wish to, and thirteen—Arizona, Connecticut, Maine, Maryland, Massachusetts, New Jersey, New Mexico, New York, Oregon, Pennsylvania, Rhode Island, Vermont and Washington, plus the District of Columbia—have done so. Together, the California-standard bloc accounts for about forty percent of the US auto market. This segment being far too big for auto manufacturers to ignore, the California standards have in large part effectively displaced the EPA’s standards and comprise one of the major factors behind California’s widely recognized leadership in the battle against global warming.

But that leadership, or at least the legal anomaly that underpins it, is in danger. The Trump administration not surprisingly takes a dim view of California’s stricter-than-federal tailpipe emissions standards. It will come as no great surprise if the EPA under Scott Pruitt seeks to revoke the exemption that allows California to impose them.

Anyone old enough to have breathed the air in Los Angeles in the 1960s, or to have tried to make out anything more than a block and a half or so away through it, and in a position to repeat either exercise today, can attest to the degree that air quality has improved there over the last 47 years. In fact air quality over that span has improved significantly nationwide. According to the Union of Concerned Scientists, levels of sulfur dioxide, nitrogen dioxide and ground-level ozone—the first two being the main toxins in acid rain, the third a critical component of smog—have fallen by 71, 46 and 25 percent respectively since 1980. That group credits the Clean Air Act with preventing more than 400 thousand premature deaths and hundreds of millions of respiratory and cardiovascular disease episodes.

The EPA itself notes that over the 45 years following the passage of the Clean Air Act, national aggregate emissions of six common pollutants—particles, ozone, lead, carbon monoxide, nitrogen dioxide and sulfur dioxide­—fell by an average of 70 percent even as the nation’s gross domestic product more than doubled. We pretty much all breathe cleaner air today, and we should all of us, of whatever political stripe, be happy about that.

But in keeping with his pervasive amorality and with long-established Republican tradition, Donald Trump has set out to degrade our environmental safeguards in the name of jobs. Republicans tend to follow this course no matter how much the environmental costs outweigh the economic benefits. It’s also typical of them to champion states’ rights—except when they see fit not to, which is generally to say, when they’re the ones wielding federal power. Thus the decision in 2000 by a Supreme Court dominated by Republican appointees to deny Florida the right to conduct a recount of presidential ballots. Thus the passage at the behest of President George W. Bush (with plenty of Democratic support) of a nationwide student-testing regimen under the No Child Left Behind law. Thus, nowadays, the Trump administration’s policies on marijuana, sanctuary, abortion and mileage mandates.

There are arguments of varying degrees of cogency to be made for imposing a uniform nationwide set of mileage standards. Complying with California’s—the state’s Air Resources Board just voted unanimously to require new cars to average 54.5 mpg by 2025—will cost automakers money, more than a thousand dollars per car by some estimates, and those costs will of course get passed on to consumers. But those transferred costs will be defrayed if not completely offset by what consumers save on gas.

A more compelling advantage to uniform nationwide mileage standards might be that of sparing motorists the threat of prosecution in driving across the border from a state with lower standards to one with higher ones. But there’s also an obvious reason why California has been granted the right to formulate its own standards—we have more air pollution than anyone else. Air pollution kills people. Residents of any state have the right to take reasonable measures to protect their own lives, and to scale those measures to the local dangers they face. California's air pollution comes largely from car and truck exhaust. It makes perfect sense that California would want to impose controls on that exhaust stricter than those in states where smog poses less of a risk.   

Fifty years ago, visitors to Hollywood were often hard-pressed in broad daylight, or daylight as broad as it got, to see that neighborhood’s iconic namesake sign on the hillside overlooking the movie studios. These days visibility in Los Angeles is much improved. If Donald Trump and Scott Pruitt have their way, the Hollywood sign and much of the rest of the country may be headed back toward smog-blanketed obscurity, and people will suffer respiratory and cardiovascular ailments in greater numbers than otherwise, and some of them will die sooner. States’ rights is a matter of principle. Air quality is a matter of life and death. In the matter of emissions standards, the Trump administration seems set on violating both of them. For some of us that violation could prove fatal.





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