Little-Noticed Rule Change May Be Big Statement of Obama's Climate Agenda

The DoE recently updated its energy-efficiency standards for microwaves. Big deal, right? Actually, observes Brad Plumer, by upping the 'social cost of carbon' used to calculate the benefits of the rule, the government has made a big shift.

1 minute read

June 6, 2013, 2:00 PM PDT

By Jonathan Nettler @nettsj


"Last week, the Department of Energy announced a little-noticed update to its energy-efficiency standards for microwaves, requiring newer models to use less power in stand-by mode," reports Plumer. "But there was a surprise buried in the fine print: The agency is now using a higher figure for the 'social cost of carbon' in calculating the benefits of the rule. Instead of assuming that the harm caused by carbon-dioxide emissions comes to $22 per ton in 2013, regulators are now using a figure [PDF] of about $36 per ton."

"That’s a big shift — the Obama administration is effectively saying that climate change will be more damaging than previously estimated, in part because of the impacts of future sea-level rise," Plumer explains. "And that means U.S. government agencies could, in theory, justify even stricter regulations to curb greenhouse-gas emissions."

"This might sound like nitpicking. But seeing as how much of the Obama administration’s climate-change agenda will likely be carried out through the Environmental Protection Agency, this small tweak could make a big difference in the years ahead."

Wednesday, June 5, 2013 in The Washington Post

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Use Code 25for25 at checkout for 25% off an annual plan!

Redlining map of Oakland and Berkeley.

Rethinking Redlining

For decades we have blamed 100-year-old maps for the patterns of spatial racial inequity that persist in American cities today. An esteemed researcher says: we’ve got it all wrong.

May 15, 2025 - Alan Mallach

Interior of Place Versailles mall in Montreal, Canada.

Montreal Mall to Become 6,000 Housing Units

Place Versailles will be transformed into a mixed-use complex over the next 25 years.

May 22, 2025 - CBC

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

May 21, 2025 - Diana Ionescu

Flat modern glass office tower with "County of Santa Clara" sign.

Santa Clara County Dedicates Over $28M to Affordable Housing

The county is funding over 600 new affordable housing units via revenue from a 2016 bond measure.

May 23 - San Francisco Chronicle

Aerial view of dense urban center with lines indicating smart city concept.

Why a Failed ‘Smart City’ Is Still Relevant

A Google-backed proposal to turn an underused section of Toronto waterfront into a tech hub holds relevant lessons about privacy and data.

May 23 - Governing

Pale yellow Sears kit house with red tile roof in Sylva, North Carolina.

When Sears Pioneered Modular Housing

Kit homes sold in catalogs like Sears and Montgomery Ward made homeownership affordable for midcentury Americans.

May 23 - The Daily Yonder