In Ecuador and Cuba, power cuts for hours at a time, sometimes even days. In Brazil, energy bottlenecks. Although Latin America is seen as a global forerunner in renewable energies, the impact of climate change is starting to cause problems. Droughts lasting weeks mean less water flowing through rivers and water reservoirs that power hydroelectric plants. And the less water, the less electricity.

Now countries in the region are beginning to squabble over distribution too.

Colombia has halted electricity exports to Ecuador, citing concerns for its own power supply. Colombia has also been suffering a severe drought.

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Even though the causes for the power problems are unique to each country, the consequences are the same: energy rationing and power blackouts. This is why many countries are now debating how best to stablize their energy supplies.

El Salvador, for example, plans a return to nuclear energy. "We want to have the first research reactor........

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