The number of retractions this year has passed 10,000 as publishers struggle to clean up a slew of sham papers and peer-review fraud. Plus, COP28 agreement names and shames fossil fuels and CAR-T therapy shows promise against autoimmune diseases. The number of retractions this year has passed 10,000 as publishers struggle to clean up a slew of sham papers and peer-review fraud. Plus, COP28 agreement names and shames fossil fuels and CAR-T therapy shows promise against autoimmune diseases.