ars ago, Panama rose from ting ts betlantic, and cterns of precipitation across at least  ofAfrica,  of trees and go looking for a nehe emerging savannas.

    At all events, inents arranged as t appears t iceerm part of our future. According to Jo fifty more glacialepisodes can be expected, eacing a haw.

    Before fifty million years ago, Eart o be colossal. A massive freezing occurred about 2.2 billion years ago, follo—so large t some scientists are noo t occurred as tion is more popularly knoh.

    “Snoions. tbecause of a fall in solar radiation of about 6 percent and a dropoff in tion (orretention) of greenially lost its ability to o its . Itbecame a kind of all-over Antarctica. temperatures plunged by as muc. tire surface of t may o  itudes and tens of yards tropics.

    t tes iceevery asfirmly t t er someosynt t, but as youo peer t, ice quickly becomes opaque and after onlya feies ed. One is t alittle ocean er did remain exposed (pera  spot); t maybe t it remained translucent—a condition t does sometimes ure.

    If Eart question of  ever got  s so muc t it ay frozen forever. It appearst rescue may en interior. Once again, ed totectonics for alloo be  s of  and gases t melted tmosperestingly, tburst—time event of life’s ory. In fact, it may not ranquil as all t. As Eart probably   o raise o ts of skyscrapersand rainfalls of indescribable intensity.

    t all tubeo deep oceanvents undoubtedly  on as if not all ot ever o c entirely. It ime ago and at tag