Business Green: The US Department of the Interior (DOI) has announced plans to make the development of renewable energy a central priority of the organisation. In a statement issued this week, secretary of the interior Ken Salazar said he had issued a secretarial order to promote the creation of solar, geothermal and wind energy projects on the one fifth of the country’s landmass managed by the department. “More so than ever, with job losses continuing to mount, we need to steer the country …