Over the past quarter of a century, advances in technology and living standards have enabled more than a billion people to lift themselves out of poverty.

Many more are expected to experience improved lifestyles in the coming decades as emerging economies grow and the global population increases to nearly 10 billion by 2050.

Here are five surprising ways to increase living standards sustainably:

2. Greening steel and concrete

Hydrogen as a replacement for fossil fuels is expected to be the game-changer for such hard-to-abate sectors since it can be burned without emitting CO2.

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