NEW YORK — In the shadow of the euro crisis and America’s fiscal cliff, it is easy to ignore the global economy’s long-term problems. But, while we focus on immediate concerns, they continue to fester, and we overlook them at our peril.

The most serious is global warming. While the global economy’s weak performance has led to a corresponding slowdown in the increase in carbon emissions, it amounts to only a short respite. And we are far behind the curve: Because we have been so slow to respond to climate change, achieving the targeted limit of a two-degree (centigrade) rise in global temperature, will require sharp reductions in emissions in the future.

Some suggest that, given the economic slowdown, we should put global warming on the backburner. On the contrary, retrofitting the global economy for climate change would help to restore aggregate demand and growth.

At the same time, the pace of technological progress and globalization necessitates rapid structural changes in both developed and developing countries alike. Such changes can be traumatic, and markets often do not handle them well.

Just as the Great Depression arose in part from the difficulties in moving from a rural, agrarian economy to an urban, manufacturing one, so […]