so help you god dr . hoover, your 1st chief witness was professor martha hoffer with his calculations from the year 1982 on doctor. how about your work with exxon was focused on the carbon cycle and climate modeling. i have a slide up here and so 1982 was 7 years before i was even born. exxon accurately predicted that by this year, 2019 the earth would hit a carbon dioxide concentration of $415.00 parts per 1000000 and a temperature increase of one degree celsius. dr. hoffer it, is that correct? we were excellent scientist. yes, you are. yes you are. so they knew they knew and i, i presume they knew what some of the consequences of that one degree celsius change would be. some of them, not all. absolutely. i would like to have an opportunity to discuss that if someone asks me, miss hoford's said that his findings had been passed on to top x on executives. he quit in 1987, 6 years after starting his consultancy work for exxon. because he realized that his research was not prompting any change and company strategy. i was there because i thought that i could, i mean this was very naive o