The more renewable energy sources are integrated into the power grid, the less dependent a nation becomes on fossil fuels.

As much as a city grows larger, it becomes more and more harder to manage its public transportation infrastructure efficiently.

The most the population increases, the biggest the demand for natural resources will eventually become.

More the technology advances, more the privacy concerns among internet users are likely to intensify.

The higher the interest rates rise, the least likely consumers are to spend money on high-value luxury goods.