Tim Halbur

<p>Railroads are overcoming decades of resistance from environmentalists by touting their greener aspects.</p>

<p>Gina Olszowski's first book focuses on the personal stories of rural residents impacted by sprawl.</p>

<p>Household sewage is currently fueling cars in Sweden, and has for years. But Swedish industry has given up on the idea, investing in ethanol-based gasoline.</p>

<p>Will laser-projected pedestrians make crossing the street safer in South Korea?</p>

<p>Tyson's Corner, an auto-oriented suburb of Washington, D.C., reveals ambitious plans to become a dense, urban community. Officials are bracing themselves for tough opposition from locals. The Washington Post story includes a video report.</p>