 We don't actually know that much about microdosing. Meanwhile, another study from UC San Diego has found that Internet search terms related to microdosing have grown by more than 1,000 percent since 2015. Will Stone, NPR News. As demand for electric vehicles continues to slow worldwide, Tesla is reporting a drop in global sales in the latest quarter. They fell 4.8 percent in the period of April through June. It marks the second consecutive quarterly decline for Tesla.