Embarked on its maiden voyage from china to brazil. it s hoped the british designed technology, which uses the wind to help propel the vessel, will reduce carbon emissions by up to 30% and help tackle climate change. you are live with bbc news. to the us now where much of southern california has been hit by torrential rain. it s the state s first tropical storm in more than 80 years. nine million people have been under flash flood warnings. we re going to focus on these areas los angeles, palm springs, death valley and las vegas in nevada. let s start in los angeles and look at some of the iconic hollywood locations hit by storm hilary. these pictures are from snapchat and show the hollywood walk of fame. and these pictures are from universal studios a film studio and theme park in la.