President Joe Biden’s signed an executive order last month with the goal of having half of all cars sold in 2030 be electric, part of his agenda to address global warming.

The irony reveals the need for a greater mix of renewable energy sources.

In the north of California, the turbines of an important hydroelectric power station are idle - heat and drought have dried up the lake. The climate crisis is also restricting power supply elsewhere.

Severe droughts are drying up rivers and reservoirs vital for the production of zero-emissions hydropower in several countries around the globe, in some cases leading governments to rely more heavily on fossil fuels.

In the north of California, the turbines of an important hydroelectric power station are idle - heat and drought have dried up the lake. The climate crisis is also restricting power supply elsewhere.

Severe droughts are drying up rivers and reservoirs vital for the production of zero-emissions hydropower in several countries around the globe, in some cases leading governments to rely more heavily on fossil fuels.

Severe droughts are drying up rivers and reservoirs vital for the production of zero-emissions hydropower in several countries around the globe, in some cases leading governments to rely more heavily on fossil fuels.

Sometime next month, for the first time, the federal government is likely to declare a water shortage at Lake Mead.