EnvironmentHow geologic hydrogen went from fringe science to potential green fuel Just a year ago, few people took seriously the idea that we could extract hydrogen from the ground as a clean energy source - but now the US Department of Energy is injecting $20 million into the concept Analysis
EnvironmentEngineers are building the first bridge over a moving rock glacier In Denali National Park, Alaska, a major road has been rapidly slipping down a mountain as the permafrost melts. Now, a huge project to build a bridge over the Pretty Rocks landslide has begun ¿ìè¶ÌÊÓÆµ