Readers ask about electrons’ roundness, a science board game and more

Your letters and comments on the November 10, 2018, and November 24, 2018 issues of Science News

Beer today, gone tomorrow

Rising temperatures and more frequent droughts could cut barley crop yields worldwide by the end of the century, leading to beer shortages and high prices, Jennifer Leman reported in “Add beer to the list of foods threatened by climate change” (SN: 11/10/18, p.