a former us police officer derek shelven has pleaded guilty to violating george floyd's civil rights is admitted for the 1st time that he kept his knee on floyd's neck. even after he became unresponsive. the play me showing won't stand trial in january. he's already serving more than 22 years in jail after being found guilty of floyd's murder, the killing spark worldwide protests against racial injustice. 3 companies are facing federal charges for an oil spill off the california coast, which triggered a state of emergency more than 1904000 liters of crude ford into the ocean. in october, after a pipeline ruptured, the companies are accused of negligence for their delayed response to alarms set off by the spill. habitat destruction climate change and growing pesticide use are threatening africa's bes scientists in. can you say that crucial role as pollinators of crops and wild plants is a risk? but there is hope africa could avoid the destruction of bees seen on other continents. malcolm web reports from ranga in kenya. the other caught a trees on james worries. farm were under produc