The signs of climate change are all around us. The average temperature in the United States during the past decade was 0.8° Celsius (1.5° Fahrenheit) warmer than the 1901-1960 average, and the last decade was the warmest on record both in the United States and globally. Global sea levels are currently rising at approximately 1.25 inches per decade, and the rate of increase appears to be accelerating.
The scientific consensus is that these changes, and many others, are largely consequences of anthropogenic emissions of greenhouse gases that have led to a warming of the atmosphere and oceans.
The Council of Economic Advisers released a report today that examines the economic consequences of delaying implementing policies to reduce the pace and ultimate magnitude of these changes; the findings emphasize the need for policy action today. The report was written under the leadership of Jim Stock, who recently resigned as a Member of the Council of Economic Advisers to return to his teaching position at Harvard University.
KEY POINTS IN TODAY’S REPORT FROM THE COUNCIL OF ECONOMIC ADVISERS
1. Immediate action substantially reduces the cost of achieving climate targets. Taking meaningful steps now sends a signal to the market that reduces long-run costs of meeting the target. Such action will reduce investments in high-carbon infrastructure that is expensive to replace and will spur development of new low- and zero-emissions technologies. For both reasons, the least-cost mitigation path to achieve a given climate target typically starts with a relatively low price of carbon to send these signals to the market, and subsequently increases as new low-carbon technologies are developed and deployed. An analysis of research on the cost of delay for hitting a specified climate target suggests that net mitigation costs increase, on average, by approximately 40 percent for each decade of delay.
read more
