One widespread objection to renewables is the fact that they need some kind of backup, such as gas or hydro power. But as technologies advance, the possibility of storing electricity generated by renewables seems like not-a-too-distant future. The new concentrated solar power plant in Chile is bringing Latin America to the forefront, says Maximiliano Proaño.
Czech nuclear reactors have so far produced at least 4000 tons of highly radioactive waste. If the number of reactors grows, so will the amount of waste produced. The government has long declared itself in favor of developing nuclear energy even as it still does not know how to solve the nuclear waste problem. Martin Sedlák takes a look.