The Climate-Change Precipice

The scientific debate about whether there is a global warming problem is pretty much over. A leading international group of climate scientists reported last month that the evidence for global warming is “unequivocal” and that the likelihood it is caused by humans is more than 90 percent. Skeptical researchers will continue to question the data, but this isn’t a “call both sides for comment” issue anymore. For mainstream science, it’s settled.

The question now is what to do about global warming. This is a political problem more than a scientific one. The solutions (if we can agree on any) will require political will and imagination — and also pain. That was my only reservation about the Oscar night celebration of Al Gore’s leadership on this issue. The gowns and black ties and the celebrity back-slapping made it look like dealing with global warming will be fun, a walk down the red carpet. But it’s more likely to be about catastrophe and how to share the pain.


These issues come into focus in a startling new report by futurist Peter Schwartz. He turns the usual discussions upside down: Rather than starting with detailed estimates of climate change (how much temperatures will increase; how much sea levels will rise; what new diseases will be spawned), he looks instead at systems that already are vulnerable to such stresses.

What Schwartz discovers with his stress-testing makes climate change even scarier: The world already is precarious; the networks that maintain political and social order already are fragile, especially in urban areas; the dividing line between civilized life and anarchy is frighteningly easy to breach, as the daily news from Iraq reminds us. We look at the behaviors of butterflies and migratory birds as harbingers of climate change. But what about early effects on human beings? “The steady escalation of climate pressure will stretch the resiliency of natural and human systems,” writes Schwartz. “In short, climate change pushes systems everywhere toward their tipping point.”

Washington Post