>> we have breaking news. traffic is a complete mess and has been for most of the afternoon following an armed carjacking on the bay bridge. we are live over the scene. the carjacking happened after a crash on i-80 eastbound west of treasure island in san francisco. three lanes were closed and reopened about an hour ago. you can see the traffic is backed up as you approach the bay bridge from sky 7. chp is looking for a man who took a chevy colorado pickup

truck just before noon. the suspect is armed and dangerous. we want to show you a picture of the stolen truck. a white chevy colorado pickup truck with california plates. this is broadcast by dispatch audio. >> he took this vehicle and had a firearm. >> the chevy continued eastbound toward oakland and officers believe the carjacking happened after a collision. we are working to learn more. they are searching for the person who stole the pickup truck. currently, drivers trying to get on the bay bridge from san francisco are dealing with severe backups. our colleague is stuck in that traffic. she said it was the worst

traffic she has experienced since living in the bay area. and we are showing you the live video now. this has been going on for hours. we see that because lanes have opened, traffic is moving slowly now so hopefully that means these backed up cars will start being able to move again but this has been going on for hours and is causing a major back up major congestion in san francisco for those trying to get on the bridge. so this is a carjacking that happened earlier today and chp is looking for the suspect. we will bring you the latest online and at 4:00. good afternoon. we will get to the rest of the news on getting answers, where we ask experts questions everyday at 3:00 to get answers. we are talking about the mayor's

trip to europe. the san francisco standard will join us. and a san francisco woman is using her love for the planet to help put sustainable products on shelves. what we have a sad announcement from the family of dr. bruce willis. he is taking a break from acting because he suffers from the cognitive disorder aphasia. what is that and how it affects the human brain? the director of the aphasia recovery lab at uc berkeley joins us to explain. what is aphasia? >> it is a breakdown in the cognitive system that we take for granted that occurs after an injury to the brain. what we are doing now, i am

speaking and you are listening and understanding, after a brain injury like a stroke or a degenerative disease can cause failure of the language system and that seems to be what he is suffering from now. liz: what causes this to happen? doesn't it come on slowly or suddenly -- does it come on slowly or suddenly? >> it can be either. typically it is caused by a stroke. a sudden onset where the blood flow to the brain decreases suddenly and the person starts to have difficulty speaking or understanding language. you can also happen when someone does not get enough blood to the brain. it can also occur in neurodegenerative diseases. typically it first affects the

ability to find the words they want. liz: particularly tough for an actor. there are several types of this disease. we do not know which one he has. it is one type more common than another? >> the type of aphasia that can occur from a stroke can be of multiple types. a sudden decrease in the ability to produce language, a sudden decrease in ability to understand what others are saying. usually aphasia affects the core language system. so it is not just a problem being able to hear or see or read, it is really a problem with the central language system that allows us to find the words we want and put those words together in a coherent sentence, and vice versa, being able to understand that information.

liz: how is it diagnosed? what are some of the symptoms? >> most everyone of -- suffers from aphasia has a problem finding words. they have difficulty conversing. they have difficulty in really understanding everything somebody is saying. the reason for that can be mixed. somebody might have a core problem with being able to understand what an object is and how it relates to another object. so it is something that manifests itself across all kinds of modalities we use for language, whether it is sight, hearing, or speaking. your comment earlier reminded me

that the incidence of parkinson's disease is equal to that of aphasia and yet everyone knows what parkinson's is. few people seem to know what aphasia is. liz: that was going to be one of my questions. my grandfather had parkinson's and i watched the progression. reading the symptoms, there seems to be an overlap in similarities. >> there can be. there are many regions in the brain that help us use language in a normal fashion. if any one of those areas is affected, it affects the language system and hence, a person will have aphasia. so whatever causes the brain injury itself is the underlying disease, whether it is stroke or traumatic brain injury. but the effects are what have resulted from the specific areas of the brain that were affected

after the injury. so that speaks to the symptoms. the symptoms will always depend on what area of the brain is affected. liz: how might this manifest in someone like bruce willis? how would this impact the work he does? >> i have not seen him myself and i do not really know more about his current situation then you do, but i imagine this will be very difficult fo. the question is whether it is something that will recover over time, or change in less optimistic ways. for an actor, communication is everything. being able to deliver their lines, being able to understand -- to understand what others are

saying so when you know your line comes next. liz: is there treatment? >> yes, to some degree. depending on the different types of symptoms that occur, the treatments will be used accordingly. so somebody who has a lot of trouble finding the names of things but understands everything perfectly, the treatment will focus on naming ability. there are some people who can speak perfectly well but cannot really make out the speech signal. they do not understand what people are saying if they hear the words. so treatments for that particular kind of disorder would focus on that symptom. there are speech language pathologists all over the world who specialize in this. they are very well trained in recognizing the symptoms that have occurred and what treatment

to offer in response. i would imagine he is doing that as well. i would hope so. liz: so what i. we have limited information from his family but i imagine this is something they have known for some time. is this something people can live with for years? >> absolutely. absolutely. we have worked with many individuals who have had massive strokes and as a result really have a major impact on their language system. and yet they travel and enjoy life and enjoy their kids, grandkids. it just depends on the circumstances, the support the person has, and their access to care, different therapies that

might assist. liz: what are some tips for communicating with someone who has aphasia? >> i think the best thing you can do is to slow down your speech. we all want to speak fast and it does not help the person with aphasia. one person -- one does not need to raise their voice. they are not deaf, they can hear perfectly well, but you need to give them time to comprehend and time to respond. their response might be slow and it is important to wait for their response so they can express themselves. dan: we -- liz: we really appreciate you joining us in breaking this down. coming up, san francisco's mayor is in the u.s. after the trip to europe. she tried to

liz: welcome back. we are excited with our partnership with the san francisco standard, which focuses on quality of life issues. today the stander -- standard is digging into the mayor's recent trip to europe to sell northern california -- to sell san francisco. here is insight with annie. first, what was the mayor's itinerary over the 10 days?

it looked like a nice work trip. >> what we found is that she had a busy schedule including the lot of meetings with airport and airline officials. a lot of her time was focused on convincing airlines to run more flights to san francisco. the other thing was a lot of media interviews across print, tv, radio, where she tried to promote a positive image of san francisco. liz: in those interviews, what questions were she -- what she asked and what was the reputation of the city? >> she was trying to promote a positive image, which meant highlighting the nice beautiful

attractions but also addressing some concerns regarding street conditions, public safety, crime and such. some interviews have not published yet but i listened to a podcast interview she did where she was asked about some of the challenges in san francisco and she discussed some efforts the city and state are making to coax people treatment who might need treatment for mental health or addiction issues. so she spoke of efforts the city is making to improve the city. liz: we are showing some pictures released by her office of the trip. was the purpose to boost tourism, or was there something more? >> i think it's mainly to boost tourism but one interesting

thing that emerged, i talked with her office after and they told me a theme that came out conversations with airline officials is they were interested to hear with the city is doing to get business travel and conventions back. we think of it being leisure travel and that is important but business travel is a huge driver of the tourism economy in san francisco so they were very interested in hearing what the city was doing to get the business climate back. liz: how did she address concerns about crime? >> as far as i heard in the interview i listened to, she

discussed efforts at the state level to promote more forms of involuntary treatment. governor inducement -- governor newsom -- getting committing crimes into some sort of institutional environment that might help them and fix the issue on the street. liz: what was your overall takeaway? i know she did not have press covering this for her. do you think it was ultimately successful? >> i spoke with the mayor's office and ask if they are optimistic about achieving the goal of getting more flights to the city.

they say conversations were promising and they are hoping to get good news so we will see how it shakes out. they also said mayor of paris and the mayor of london and the u.s. ambassador to france and they alluded to those relationship building exercising -- exercises leading to potential things down the road. the first thing is we will see if we see more flights to san francisco and that will be our signal that the trip was successful. liz: people are commenting on the photo of her riding her bike around paris. i remember interviewing someone in fisherman's wharf who said international tourist spend three or four as -- three or

four times as much. >> that was part of it, trying to attract those travelers. i hope i am remembering the data correctly but it is something like last year international tourists accounted for 11% but accounted for 44% of the spending so that tells you about how important they are to the city. liz: thank you so much for joining us to talk about this. we have links to the standard original reporting on our website. and you can check out streaming app to check out more videos. up next, she is fighting climate change with snacks.

liz: we want to shine a spotlight on women who are making a difference in the world right now. julio collins believes -- julia collins believes if you want to change the world, make it easier for brands to make it--for brands to bring climate friendly products to the market. tell us about your journey and what inspired you to start planet forward. >> my grandparents migrated san francisco from the deep south to start a dental practice serving the black community.

liz: what are the ins and outs of planet forward and how does it fight climate change? >> we are focused on helping brands to really stand up and join the fight against climate change. we help brands understands their carbon footprint and the impact they are having on climate change through their own products and services. we hope the brands measure their footprint, reduce it, and even neutralize it and get to carbon neutral. we do this using software. liz: we are showing your soft -- we are showing your website now. you combined your passion with the restaurant industry with your knowledge of technology. what were some of the biggest challenges? >> one of the things i will say is that awareness around climate

change is accelerating. even a few years ago there were a lot of people who did not understand the urgency of the moment so one of the biggest challenges for planet forward was helping people understand that now is the time. we have fewer than 100 months to reduce global emissions by 40% in order to stave off the worst of what will happen as our planet warms. so we have to start now. liz: so we all enjoy snacks. you created your own line of snacks called moonshot. what is different about this brand of crackers? >> we are a climate friendly snack brand which means that every decision about this product is made with the planet in mind. we are a carbon neutral product

and company. the ingredients we source are grown by farmers who practice regenerative agriculture. climate friendly farming that helps draw carbon out of the atmosphere and store it in the soil. every element of this product is designed to be climate friendly and we hope we are building a movement of other climate friendly brands. liz: you might see other brands say that it is great but it is too complicated or we don't have the money. what is your advice to them? >> it starts just with the first step, measuring your emissions. you cannot change what you don't first measure. planet forward helps brands take the first easy step of measuring the footprint. then i would say, you do not

have to be perfect to get started, you just have to mobilize. so begins with the leadership of the company deciding taking action for climate change is part of their priorities near term. it has to be a business priority. liz: julia, you are awesome

liz: thank you so much for joining us on getting answers. we are here answering your questions. world news with david muir is next and we will see you at 4:00. have a great night.

breaking news as we come on the air. the severe storm threat at this hour. tornado watches and warnings from louisiana to illinois. an ef-2 tornado damaging homes and an elementary school in arkansas. the system moving from the deep south to the northeast. millions bracing for twisters and damaging winds topping 80 miles per hour. ginger zee in the storm zone timing it out. 24 hours after russia said it was scaling back attacks in parts of ukraine, new explosions reported near kyiv. the pentagon saying it's seen less than 20% of russian troops moving away from around the capital. haunting new images showing the widespread devastation of mariupol, the city levelled. president biden speaking with ukraine's president zelenskyy for nearly an hour today. what the u.s. is now promisin