But there are two big problems with this critique: First, there is no readily apparent alternative that would be any easier politically. It is difficult to imagine a globally harmonized carbon tax or a coordinated multilateral regulatory effort. The flexibility of a global market-based policy -- supplemented by regulation and revenue-neutral tax policies -- is the option that has by far the best chance of success. The fact that it is extremely difficult does not mean that we should simply give up.
Second, we should have no illusions about the difficulty and the time needed to convince the rest of the world to adopt a completely new approach. The lags in the global climate system, including the buildup of heat in the oceans from which it is slowly reintroduced into the atmosphere, means that we can create conditions that make large and destructive consequences inevitable long before their awful manifestations become apparent: the displacement of hundreds of millions of climate refugees, civil unrest, chaos and the collapse of governance in many developing countries, large-scale crop failures and the spread of deadly diseases.
It's important to point out that the United States is not alone in its inaction. Global political paralysis has thus far stymied work not only on climate, but on trade and other pressing issues that require coordinated international action.
The reasons for this are primarily economic. The globalization of the economy, coupled with the outsourcing of jobs from industrial countries, has simultaneously heightened fears of further job losses in the industrial world and encouraged rising expectations in emerging economies. The result? Heightened opposition, in both the industrial and developing worlds, to any constraints on the use of carbon-based fuels, which remain our principal source of energy.
The decisive victory of democratic capitalism over communism in the 1990s led to a period of philosophical dominance for market economics worldwide and the illusion of a unipolar world. It also led, in the United States, to a hubristic "bubble" of market fundamentalism that encouraged opponents of regulatory constraints to mount an aggressive effort to shift the internal boundary between the democracy sphere and the market sphere. Over time, markets would most efficiently solve most problems, they argued. Laws and regulations interfering with the operations of the market carried a faint odor of the discredited statist adversary we had just defeated.
This period of market triumphalism coincided with confirmation by scientists that earlier fears about global warming had been grossly understated. But by then, the political context in which this debate took form was tilted heavily toward the views of market fundamentalists, who fought to weaken existing constraints and scoffed at the possibility that global constraints would be needed to halt the dangerous dumping of global-warming pollution into the atmosphere.
Over the years, as the science has become clearer and clearer, some industries and companies whose business plans are dependent on unrestrained pollution of the atmospheric commons have become ever more entrenched. They are ferociously fighting against the mildest regulation -- just as tobacco companies blocked constraints on the marketing of cigarettes for four decades after science confirmed the link of cigarettes to diseases of the lung and the heart.
Simultaneously, changes in America's political system -- including the replacement of newspapers and magazines by television as the dominant medium of communication -- conferred powerful advantages on wealthy advocates of unrestrained markets and weakened advocates of legal and regulatory reforms. Some news media organizations now present showmen masquerading as political thinkers who package hatred and divisiveness as entertainment. And as in times past, that has proved to be a potent drug in the veins of the body politic. Their most consistent theme is to label as "socialist" any proposal to reform exploitive behavior in the marketplace.
From the standpoint of governance, what is at stake is our ability to use the rule of law as an instrument of human redemption. After all has been said and so little done, the truth about the climate crisis -- inconvenient as ever -- must still be faced.
The pathway to success is still open, though it tracks the outer boundary of what we are capable of doing. It begins with a choice by the United States to pass a law establishing a cost for global warming pollution. The House of Representatives has already passed legislation, with some Republican support, to take the first halting steps for pricing greenhouse gas emissions.
Later this week, Senators John Kerry, Lindsey Graham and Joe Lieberman are expected to present for consideration similar cap-and-trade legislation.
I hope that it will place a true cap on carbon emissions and stimulate the rapid development of low-carbon sources of energy.
We have overcome existential threats before. Winston Churchill is widely quoted as having said, "Sometimes doing your best is not good enough. Sometimes, you must do what is required." Now is that time. Public officials must rise to this challenge by doing what is required; and the public must demand that they do so -- or must replace them.
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