If the Perseverance rover now exploring Mars finds substantial deposits of water under the Martian soil, perhaps it can send some to Taiwan. Taiwan—where so many of the world's semiconductors are manufactured, but probably not the ones guiding the Martian rover—is suffering its worst drought in 67 years. The Taiwanese drought illustrates converging risks that involve climate change, geographic concentration of a critical industry, outsourcing, international tensions and supply chain fragility.
The drought has been very bad for those Taiwanese farmers affected by a shutoff of irrigation water. So far the shutoff affects only 19,000 hectares (46,950 acres) or 6 percent of all irrigated land.
But now the drought is threatening a mainstay of the Taiwanese economy, semiconductor production. This matters to the rest of world because the island nation of Taiwan is home to more than 20 percent of the world's semiconductor manufacturing capacity, the largest percentage located in any one country.