(Via DC Policy Center)

Update: WAMU dug deeper into the numbers and found that “emissions data paints a false picture, due to systemically inaccurate reporting by building management and a lag in oversight by the Department of Energy and Environment.” Both the Watergate and the second-highest greenhouse gas emitter on the list, the Organization of American States, appear to have incorrectly self-reported their information.

While the Department of Energy and Environment is working with the organizations to correct the problem, the DC Policy Center has already received updated data from George Washington University that is reflected in the graph below.

Original:

By both total carbon emissions and emissions by square foot, the Watergate complex is likely the biggest emitter of greenhouse gases in the District.

Under a 2008 law, all public buildings that are 10,000 square feet or larger and private buildings that are 50,000 square feet or larger must track and report their greenhouse gas emissions. Of the city’s total inventory of 161,500 buildings, just 1,054 match those descriptions. But as the city’s biggest buildings, they offer a pretty good portrait of greenhouse emissions in the District.

The DC Policy Center published all those sites on a map, which can be toggled between emissions by area and total emissions. Red areas highlight the places, many of which are universities and hospitals, that contribute the most greenhouse gases.

The Organization of American States and George Washington University follow the Watergate as the biggest emitters.

(Via D.C. Policy Center)

For the full map and more, see the DC Policy Center.