Environment Research Lab: LSs of EPA building with sign in foreground. MS and MCS of same. TRAVELLING SHOT pass sign and into driveway. MSs taken from inside, of man entering with samples in his hands. MCU of camera set for stills, man entering and adjusting for pictures. MCU of ruler sign "acid rain" damage tomato leaf, leaf being placed near ruler. MCU of microscope's bottom plate, of technician placing sample disk of salamanders, probing them with tweezers. CUs of bottle labelled email@example.com containing salamanders. PAN right to disk being felled. CU ponpopocia orgy, numbers in background. MS of two biologists in crayfish lab, picking up and examining it. CU of crayfish. TILT UP to biologist face and PAN left on girl's face. PAN down on crayfish being measured and place in jars. MCU of biologist setting sample in microscope. CU of him looking in microscope. CSs of mosquito being dropped in vial. CS of crayfish in disk being prodded by tweezer.