little relief from the rain in california, as the chaos caused by deadly downpours becomes clear. there s warnings of worse weather to come. welcome to our viewers on pbs in america, and around the globe. an investigation into the failure of the safety messaging system, which led to all departing flights in the united states being grounded early on wednesday was caused by a damaged file in a database, and not by a cyber attack. that s according to an investigation by the federal aviation authority. flights have been getting back to normal, but the us transport secretary said the faa must find out why backup systems did not prevent the failure. our north america correspondent, gary o donahew reports. it was in the early hours that the problems began to emerge with the notam system, which warns pilots of any dangers before they take off. byjust after 7am, the federal aviation authority was ordering all carriers across the us to ground their planes until further notice, causing
that s mopping up the mess in the air. that s easy for you to say! we will find out if hydrogen can do the heavy lifting. and check out our latest merch. if you don t like the band, don t worry, the logo comes back off. once again, the leaders of the world have been coming together in an effort to fight climate change. as cop27 comes to a close, campaigners are warning that key commitments aimed at securing the future of the planet are at risk. in the year since cop26 happened here in glasgow, there has been a lot of criticism that the event was all talk and not much action. change is not going to come from inside there, that is not leadership. this is leadership. these un climate summits bring together thousands of delegates from governments, science and pressure groups from around the world. the aim is to provide the support for all countries to be able to reduce their carbon emissions and deal with any issues that climate change will inevitably cause. the world is warming
welcome to bbc news. i m monika plaha. our top stories. the biggest air disruption in america since 9/11. officials say a damaged data base file caused a technical fault that forced flights to be grounded across the us. my my top priority now the system is working this morning is to understand the root cause. understand it could have led to this level of disruption and make sure it does not happen again. explosion fighting intensifies in eastern ukraine as the battle for the town of soledar proves one of the bloodiest of the war so far. music plays jeff beck, one of the guitar masters of the rock era,
Stephen Sackur speaks to former Russian diplomat Boris Bondarev who quit his post and launched a scathing attack on the Putin regime after the invasion of.
welcome to bbc news. i m monika plaha. our top stories: the biggest air disruption in america since 9/11: officials say a damaged database file caused a technicalfault that forced flights to be grounded across the us. my my top priority right now, now that the system is working again as of nine o clock this morning, is to understand the root cause, understand how it could have led to this level of disruption and understand how to make sure that he does not happen again. gunfire. fighting intensifies in eastern ukraine as the battle for the town of soledar proves one of the bloodiest of the war so far. jeff beck, one of the guitar masters of the rock era,