A current and future growing tech challenge: Computer chips are using too much energy. On today’s trajectory, by 2040 the energy required for global computing would exceed the world’s estimated energy production.

This worst-case scenario is probably unlikely, but it shows how critical it is to find new computing solutions and energy generating methods.

Research on breakthrough chips and computing tech is picking up steam.

Among the top ideas: Quantum computing, brain-like computer chips and new artificial intelligence platforms. Companies such as Intel, IBM and AMDare working on the problem, but expect it to become more pressing in coming years.

So look at these companies for possible current or future stock picks.

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