JEFFREY BALL: Global warming is fundamentally harder than past environmental problems. Unlike smog or litter or dirty rivers, it’s global, long term and largely invisible. The upshot: Solving global warming is the top priority of essentially no one (save a relative handful of scientists and environmental activists).
2. There’s a consensus among leading scientists that global warming is
caused by human activity. What–if anything–should we do about it?
JEFFREY BALL: Global warming is fundamentally harder than past
environmental problems. Unlike smog or litter or dirty rivers, it’s
global, long term and largely invisible. The upshot: Solving global
warming is the top priority of essentially no one (save a relative handful
of scientists and environmental activists).
3. That suggests two basic principles for fighting global warming. First, the steps that will be
most politically feasible are those that happen to curb greenhouse-gas emissions in the
process of doing something that more people care more about: cleaning the air, or
producing jobs or making money. Second, in contrast to the approach taken thus far, the
steps that make the most sense are the ones that are most economically efficient.
A third basic principle is equally important: Technological breakthroughs are hard to
predict. So it’s unwise to ground any strategy to curb global warming on the expectation
that a particular technology will get big enough and cheap enough to be a main fix.
4. Those three basic principles are pretty general. They point to two more-specific
approaches:
Focus on the biggest sources of greenhouse-gas emissions. That includes a handful
of gases produced in industrial processes that, pound for pound, pack a far heavier
global-warming punch than does carbon dioxide. As for carbon dioxide, it means
focusing on China, the world’s biggest emitter and a place that has an incentive to
clean up its energy system that most people see as far more compelling than global
warming: dirty air.
5. And when governments around the world spend money to promote
cleaner energy, it’s worth structuring those subsidies to reward not
specific predetermined technologies, but whichever technologies over
time end up able to produce the most environmental gain at the
lowest cost.