Catastrophes!

by Isaac Asimov, Martin H. Greenberg, Charles G. Waugh, Edward Wellen, Harlan Ellison, W.S. Merwin, Ben Bova, Lloyd Biggle Jr., William Tenn, Clark Ashton Smith, Harry Harrison, Edmond Hamilton, Larry Niven, Fritz Leiber, Chad Oliver, Ursula K. Le Guin, Arthur C. Clarke, Raymond Z. Gallun, Walter M. Miller Jr., Alfred Coppel, Robert Sheckley, Robert Silverberg, C.M. Kornbluth