3 ms·
> A million years from now, there will be a sedimentary record as distinct and unusual as that caused by the Chixculub crater impact Are you a time-traveler or
by black6 4y ago
> A million years from now, there will be a sedimentary record as distinct and unusual as that caused by the Chixculub crater impact
Are you a time-traveler or a prophet?
- photochemsyn 4y agoYou can already see it by taking a sediment core from any undisturbed lake bottom in the world, just look for first appearance of the bomb radioisotopes and DDT residues as you go up the core from deeper to shallower layers.