With Valentine's Day gaining popularity in Germany, the demand for red roses and other flowers is also growing. Wiesbaden florist Erhard Priewe discusses shifting trends, product shortages, and why the holiday is not as "commercialized" as many people believe.

Germany is not a big enough country to devote all of its land to creating renewable energy – but there is another place with vast expanses of empty space and limitless sunshine.

In this video, physicist and author Harald Lesch talks about how Germany could phase out coal and nuclear power completely and still meet all of its energy needs.