We discuss this issue with our studio guest Felix Matthes, an energy expert at the German Institute for Applied Ecology.
Not all damage to a load-bearing structure is immediately apparent. So how do civil engineers find out that a bridge or a large hall is no longer safe? Many clues form a picture.
Cooling devices are critical for millions of people worldwide, particularly with rising temperatures. But while such appliances save lives, they're also big contributors to global warming. Can we stay cool sustainably?
China resorted to a one-child policy in 1979 to limit its then-ballooning population, and then over three decades later changed it to a two-child policy. Experts say it cannot be a model for other countries.
The power lines connecting France and the Iberian Peninsula are set to be upgraded. But will more renewable electricity flow from Portugal to Central Europe, or more French nuclear power flow in the other direction?
© 2018 Deutsche Welle |
Legal notice |
| Mobile version