EarthRadioactive waste dogs Germany despite abandoning nuclear power Major problems at a salt mine where 126,000 drums of radioactive debris are stored are fuelling public distrust of Germany's long-term waste disposal plans ¿ìè¶ÌÊÓÆµ
Technology3D-printing earthquake-proof towns, brick by brick We can build structures that resettle after quakes, and self-cooling homes – the trick is to 3D print custom building blocks, not whole buildings Opinion