Cars, ships, planes and buildings have all been getting ever larger. Does that make sense? What are the limits and the alternatives? We also look at the role of tiny things in high-tech.

Chen Hui-ping co-founded the startup Sunnyfounder. The solar power fundraising platform is a pioneer in Taiwan, where photovoltaics are lagging. The government is pushing green technology, but industry still depends on fossil fuels and nuclear power.

Oil has ensured prosperity, but also triggers crises and wars. How did the Petroleum Age begin? What is oil? And does it have a future as an energy source?

No more crude oil - would that be the end of the chemical industry? The entire sector is dependent on fossil fuel resources. But chemical companies are rethinking and developing climate-friendlier technologies. Evonik is working on CO2 recycling.

Our fossil fuel-based civilization will collapse by 2028. That stark prediction comes from US economist and author Jeremy Rifkin. He says the first signs are showing on capital markets. His response is outlined in his latest book, ‘The Green New Deal’.

Some doctors in Poland are brushing up on their English skills in order to apply for jobs in the United Kingdom. For them, the ongoing saga surrounding Brexit does not appear to be a deterrent.

Our reporter Janelle Dumalaon visits towns in eastern Germany that desperately need fresh blood if they are to survive -- whether Germans or immigrants. What kind of opportunities are there? Are there homes and jobs? Can startups flourish there too?

30 years after the fall of the Berlin Wall, 57% of people in eastern Germany say they feel like second-class citizens. We review some of the data on developments since reunification.

Women can still have a hard time rising through the corporate ranks. The same can hold true for people from the old East Germany. Hiltrud Werner has succeeded in both respects.

Cars have been built in Zwickau since 1904. In the days of the old East Germany, it is where the Trabant was produced. Volkswagen took over the company in 1990 and modernized the plant; now it is re-engineering it again to make electric cars.