the dow dropped nearly 1,000 points for its worse day since october of 2020. all major indexes were down by 2.5% or more. it s being blamed partly on a slew of disappointing corporate earnings and fears that the fed will soon raise interest rates again to control inflation. on this earth day, we wanted to get you plugged in on the booming sales of electric vehicles. gas-powered cars and trucks are among the worst sources of planet-warming pollution in this country, and many americans want to switch to electric. but as we continue our series earth 365, cbs ben tracy warns e.v. shoppers may get zapped by supply chain roadblocks. reporter: one way to avoid the pain at the pump is to never have to go there. katie mitchell got an electric car in january, and says she s now saving hundreds of dollars a month charging up versus filling up. when you saw the gas prices just skyrocket, how lucky did you feel? so lucky and so grateful.
first booster. that s the best way to protect yourself. o donnell: our interview with dr. ashish jha. we have an update on you for the story we ve been telling you about about a string of deaths related to an aircraft carrier. today, cbs news can report a total of seven sailors from the uss george washington have died over the past year, and in the most recent, three were all apparent suicides within days of each other. we re just learning the names of those who died. mikhail sharp, natashia huffman, and xavier sandeddor. the ship has b in newport news, virginia, and is undergoing extensive maintenance. the navy is investigating whether there are underlying causes that led to the sailors to take their own lives. tonight, the american lung association is out with its annual state of the air report that found more than 40% of americans that s 137 million are living in areas with unhealthy levels of dirty air. in our continuing series on climate change, earth 365, cbs ben tracy h
they don t appear to be related. one sailor died aboard the ship on april 15. the others were found days earlier at separate offsite locations. coastal cities across the country are being warned that sea levels are projected to rise up to an additional foot by the year 2050 due to climate change. as part of our earth 365 series, cbs ben tracy takes a look at an extraordinary project that could save america s coastlines. reporter: how high did the water go? it was over eight feet high where those little waves are. reporter: bill merrell will never forget the night he spent trapped inside this building in galveston, texas, as hurricane ike slammed ashore in 2008. the storm caused $30 billion in damage. it was probably a thirst yer storm. reporter: merrell, an oceanographer at texas a&m, was reminded of the giant floodgates he had seen in the netherlands. these are gates you can see from space.