Sentences with phrase «earth at an early date»

Shen's own work demonstrates that the deeps of the Proterozoic ocean were full of sulfidic gases, not dissolved oxygen, and indicates that a complex natural environment, complete with a food chain and natural selection, was in place on Earth at an early date.

Not exact matches

At an early date it was a favourite of those who expected the imminent coming of God's reign on earth; Papias (early second century) made use of it and supplied other traditions about future miraculous fertility from what (he said) had come from John the Lord's disciple.

«Also, these earlier dates would mean that changes to the Earth happened at a slower pace than we might otherwise think.»

After roving for approximately a Mars year (almost two Earth years) and sampling dust, sand, rocks and atmosphere at the Gale Crater landing site, Curiosity has found the strongest evidence to date that the very early Mars environment could have provided a suitable habitat for life as we know it.

For basic developments at the negotiations, there's no better source than the Earth Negotiations Bulletin, with a name dating from when it was a hastily printed flyer in the early days of environmental treaty - making.

But the IPCC said the longer term trends were clear: «Each of the last three decades has been successively warmer at the Earth's surface than any preceding decade since 1850 in the northern hemisphere [the earliest date for reliable temperature records for the whole hemisphere].»

Lead author Dr Anna Hogg, from the Leeds» School of Earth and Environment, said: «Dramatic changes have been reported in this part of Antarctica, so we took a closer look at how its glaciers have evolved using 25 years of satellite measurements dating back to the early 1990s.»