According to the Federal Reserve, increasing tariffs on China in 2018 led to fewer direct imports from China, but other countries started importing more from China and then exporting those goods to the US. So, unfortunately for the penguins on the McDonald Islands, they're stuck with these 10% tariffs.

UNESCO World Heritage says the Heard Island and McDonald Islands exist "in the complete absence" of human impact.

The Trump administration hit the remote Australian territory Heard Island and McDonald Islands with a 10% tariff, but no humans inhabit the islands.