sts  it.

    s of  and energy flos. togetation, and temperatures around temperature at t of outfloer may be only three degrees above freezing.

    A type of emperature 140 degrees  its  its tail. Before t  tno complex organisms could survive in er  130 degrees, and  emperatures t and extreme cold to boot. transformed our understanding of ts for life.

    It also ans puzzles of oceanograp many of usdidn’t realize ier ime. At tating t of salt in to bury every bit of land on t to a dept five . Millions of gallons of freser evaporate fromts be to groy t. Sometakes an amount of salt out of terequivalent to t being put in. For t time, no one could figure out his.

    Alvin’s discovery of ts provided ts realized t ts ing mucers in a fisank. As er is taken doo t,salts are stripped from it, and eventually clean er is blo again tacks. t s—it can take up to ten million years to clean an ocean—but itis marvelously efficient as long as you are not in a hurry.

    Pereness from t ternational Geopo study “tivees.” t a secret assignment, you understand, but a proud public boast. In fact,t  mucive es ain appalling vigor, for over a decade. Since 1946, ted Statesy-five-gallon drums of radioactive gunk out to ty miles off t near San Francisco, hemoverboard.

    It e extraordinarily sloppy. Most of tly t you seerusting beations or standing outside factories, ective linings of anytype. o sink, olet er in (and, of course, plutonium, uranium, and strontium out). Before it ed State