Study casts doubt on ’Snowball Earth’ theory
Remains of photosynthesizing microbes in prehistoric rocks suggest Earth
was not ice-bound. A study that applied innovative techniques to previously
unexamined rock formations has turned up strong evidence on the
"Slushball Earth" side of a decades-long scientific argument.
Source & more details at http://www.innovations-report.de/html/b ... 49886.html