dozens of agencies are following washington's lead. >> it's empowering officers to step up and intervene and improve on the training that we are trying to roll out, the deescalation training, it's the beginning of how you start to build trust, it's a slow process. >> reporter: these men train officers from 300 police departments across the state. >> it's really about not getting yourself so deep in to these events where now time starts speeding up and you are forced to make the sdidecisions faster than you should be making them. >> reporter: last march, manuel ellis died after being arrested by six officers in tacoma, shinon. eyeny wrongdoing and now the state's attorney general still investigating the use of force. videos of the evidence have sparked a plea for statewide police reform. >> that training should have been in place. i know i cannot murder people because i can go to prison.

it should be like that for officers and it's not. they need rules in place like we need rules in place. >> reporter: in the cawake of t deaths, bills are working their way through legislature banning choke holds and requiring active by-stander training and adding discipline if they do not step in and report bad conduct, many of these are stalled in congress. >> there's a huge impotes to get it done. the vast majority of our officers are good, ethical human being that want to do the right thing. they need the tools and that structure to enable them to do that. >> reporter: but the group representing the rank and file officers worries that the reforms will drive people away from a career in law enforcement. >> this sweeping reform will have an impact and affect on recruitment, retention in the

profession and also public safety. >> it does not take a lot of bad policing to make the whole program look bad. it's about being willing. it's about from top down, the top buying in to that we need to do things a little differently. so if we are a servant, how do you serve your people? with humility, with kindness and gaining their trust. >> reporter: i think there's a lot of people in the country right now that, would say, police are not doing that. that policing is broken. >> i know a lot of people would s say that and parts are broken. the whole car is not disabled, it's parts and we have to fix the parts. >> reporter: eight of those police reform bills have now passed the washington state legislature, one has been signed in to law and four others are pending. the investigation in to the use of force around manuel ellis' death could wrap you up as early as the end of the month.

a new study shows there may be a simple treatment for people suffering from long-term covid symptoms, the vaccine itself. long haulers report that the symptoms ended after they were vaccinated. >> many say they are terrified to get the vaccine, worrying that the symptoms they live with worse, but many patients are reporting the opposite after their shots. >> i was extremely fatigued, i was having these pains in my back and in my lungs almost. >> reporter: kimberly said is that she has not been the same since she was sdieged with covid last march. the 58-year-old long hauler suffered from lingering health issues until she received her first covid vaccine shot last month on. >> for me, this is a miracle. >> reporter: what has been the

improvement in your symptoms? >> the viral conj the rash on my back and arms gone. the extreme, extreme fatigue episodes, those are gotten better too. >> reporter: the group survivor corp polled long haulers and found 46% said is they remained the same and 13% felt worse and 39% improved after the shot from mild to full resolution of -- survivors reported feeling beter at different points of the vaccination process. the poll caught the attention of a biologyist at yale's school of medicine she is launching a study on people with long covid, comparing responses before and after they get the vaccine to

understand if it really helps. one theory is that pieces of the virus may hide in the body. >> the vaccine triggers the body to clear the inflammation. >> and long covid is driven by a hyperactive auto immune response, and the vaccine may reduce the responses. >> there's no good therapy for long covid, and the people have really debilitating symptoms. so, there's a lot of excitement about this study. >> i was terrified of getting the vaccine and i was terrified to not get it. >> reporter: she suffered diz dizziness and exhaustion. >> i was in my life ving room dancing and my partner was like, i have not seen you dance in a

year. i forgot what it felt like to wake up and feel good and excited for the day and not feel defeated before you get out of bed. >> reporter: it sounds like somebody switched a light on. yeahenroll a w i felt, like, hundred people in the study and see if the relief lasts and they say it could help other diseases. >> you are watching the "c

did you know prilosec otc can stop frequent heartburn before it begins? prilosec otc uses a unique delayed-release formula that works to turn down acid production, with just one pill a day, you get 24-hour heartburn protection. take the prilosec otc two-week challenge. and see the difference for yourself. prilosec otc, 1 pill a day, 24 hours, zero heartburn. what happens to your body language when your underarms are cared for? ♪ ♪ it shows! our new dove advanced care formula is effective... and kind to skin, leaving underarms cared for and you... more confident and carefree. don't settle for products that give you a sort of white smile. try new crest whitening emulsions for 100% whiter teeth. its highlyctiv. better. faster. 100% whiter teeth. crestwhitesmile.com

does your vitamin c last twenty-four hours? only nature's bounty does. new immune twenty-four hour plus has longer lasting vitamin c. plus, herbal and other immune superstars. only from nature's bounty.

tomorrow is earth day, and this morning we are focusing on one of the most visible affects of climate change. rising sea levels. mark phillips took to the water to report on how this force of nature affects us all. >> reporter: let's start with a confession. this may be the most self indulgent report i have done, but it's in a good cause. they said they wanted to focus on the climate change crisis in a way people can relate to. they said, let's look at specific ways in which lives are being affected. let's look at what is happening, for example, with water. so i said, water? i know where to find some. once this was a world of wind and water and sun. now, we call them renewables.

off shore wind farms. solar power. and this is a good place to start a series on climate change, because the affects are often felt out here first and what happens here affects everywhere else. we all know that global warming is raising sea temperatures and thawing the ice caps in the north and south polar regions and we know as chunks of glaciers and ice sheets float away, they melt, causing sea levels around the world to rise. how much is a sea level rising? we know that too. according to nasa, sea levels are up since the year 1900, about 8 inches. and we also know that the rate the waters are rising is speeding up. remember when hurricane sandy hit new york city in 2012? get used to it. severe storm flooding used to be considered a once every 500 year event. now it's once every 25 years.

and with in the next three decades the national academy of science pringts that it may happen once every five years. you don't have to look in to the future to get a sense to the consequences of climate change, they are happening now and right here. you see that old fortification over there, it was built to keep the french out of the waters by henry the viii, he built it to last. but last winter, a storm rose up andthe waters rose up and it cla collapsed, 500 years. weather patterns are not what they used to be. >> we get the highest tides and strongest storms and warmestcol happening year after year. >> temperatures and sea levels and storms you can measure, the oceans play a more mysterious role in the climate story, if it were not for the oceans the

planet would be warming faster. one of the new areas of study, i gather, is what we are learning about what kind of role the world's oceans have played really in protecting us from ourselves. >> the oceans are a huge heat store and they absorb that energy coming in from the sun very efficiently. >> like a storage heater. >> a huge storage heater and the world is 72% ocean, so it has, it's buffing that energy. >> i feel a but coming. >> as with any storage heater, that energy is there and it can come back to bite us. >> a lot of scientists feel that the rising waters is evidence that the bite back has begun. when you sail through these waters you sail through the wake of history. natural, and human. but now, for the first time one of the animals species on the planet is determining the course of the world's future.

that species of course is us. i'm mark phillips. somewhere in the english channel. >> when we return, we will show you how tokyo is dealing with the pr lem of

japan's environmental ministry said that temperatures are rising in that country faster than the global average. and they are predicting more rain and more extreme weather events. the city of tokyo has deployed a massive flood protection system. lucy craft took an underground tour of thing engineering rort developed landscape criss-crossed by scores of rivers is at high risk per f for -- high risk for flooding. this shows how rains could leave millions underwater. japan has a network of defenses to shield itself from extreme flooding, but the crown jewel of the system is right here.

70 feet underground, a subterranean sanctuary. s the this is a massive underground flood diversion prochb project, one of the largest in the world, it's been called a civil engineering marvel. it has prevented major flood damage since being built 15 years ago. >> previously whenever there was a typhoon, tokyo was inundated and now, with rains our water tank has room to spare. >> inside a giant silo used to capture flood water, safety harnesses on the wall are mandatory. >> this silo is big enough to hold the statue of liberty or even the space shuttle. >> reporter: the system is activated up to eight times a year, diverting flood water down sihos in to an underground tunnel in to a massive holding

tank. >> unintentionally it looked like the greek parthenon, in dry season, the underground parthenon is a tourist magnet. each pillar weighs 500 tons. jet engines push the flood waters out and in to the nearby river. now, these gas turbines are so powerful, they can clear out an olympic size swimming pool in a few seconds. the facility has cut flood damage in tokyo by 90% and yet as rain storms are more frequent and intense, tokyo will have to keep upping the game. lucy craft, japan. >> and that's the "cbs overnight news" for this wednesday. for some of you the news continues and others check back later for cbs this morning. you can follow us on online at cbs.com and check out the podcast, it's called the debrief, with thursday tomorrow, i will be looking at the climate change debate from all angles.

reporting from the nation's capitol, i'm major garrett. ♪ it's wednesday, april 21st, 2021. this is the "cbs morning news." >> i prayed and i hoped. and i was speaking everything, i said i have faith that he will be convicted. >> this can be a giant step forward in the march toward justice in america. >> this verdict is a step. it's a popping of the lock, to get to the place where we can open the door and really start to do the work to save lives. but this is the start. yes, we're being heard. this is the start. and minnesota knows the truth.

>> the nation