This time of year, monarch butterflies from all over the U.S. migrate to coastal California, especially to the small town of Pacific Grove in Monterey County. Last year, for the most part, butterflies stayed away. But they've returned, to the delight of locals and visitors in 2021. Reporter: Erika Mahoney, KAZU  There are growing concerns about the number of people hospitalized in Southern California with COVID-19 symptoms. The numbers have spiked since the Thanksgiving holiday across multiple counties. The U.S. Supreme Court will take up a case that could sweep aside efforts to allow California workers to sue their employers, even after signing arbitration agreements.  Reporter: Rachael Myrow, KQED  While many of us were able to stay inside during this week’s storms, people living outside were struggling to stay warm and dry. In Santa Cruz, an encampment along the San Lorenzo River flooded.  Reporter: Jerimiah Oetting, KAZU