A site called Clean Technica brings us this piece of news:
Government agencies in Washington, D.C. will soon be powered 100% by renewable energy, according to a recent press release. Wind energy, provided by a Washington Gas Energy Services owned wind farm in Northern Virginia, will provide all of the electricity needs for the district’s government agencies
If this is true, there will be a lot of extremely cold or alternatively hot days in the numerous D.C. government offices, because when the wind does not blow in Northern Virginia, the poor government bureaucrats will have to manage either without heating or air conditioning.
People working in buildings which possibly use oil, gas or coal for heating and air conditioning, will have many opportunities to practice Earth Hour activities, because there will be no lights on days without North Virginian wind.