Therefore, they provide a window into studying past viral infections that happened
over millions of years in different species.
This contradicts the big bang explanation that stars and planets formed
over millions of years from large rotating clouds of dust and gas.
Perhaps no surplus carbon sink exists at all to absorb the emissions caused by burning of fossil fuels accumulated in the
earth over millions of years.
These tiny shells fall to the bottom of lakes and
oceans over millions of years, accumulating in massive white deposits that are then mined and crushed to a fine powder.
They determined how long these control points have existed, when they were acquired and how quickly they have changed across
species over millions of years.
Growing crops for fuel — known as biofuels — represents another potential way of cutting GHGs by replacing fossil fuels (biofuels created underground by
nature over millions of years).
They've figured out how a dwarf virus bursts out of bacterial cells and hope to borrow the strategy, which has been perfected by the
virus over millions of years.
Our bodies have evolved to eat whole
foods over millions of years while manufactured and processed foods have only been around for a couple hundred years.
The pair found distinct changes in corals on the margins of the Caribbean
reefs over millions of years, while samples taken from central locations were static.
For example, a more refined sea - level
record over millions of years is commercially interesting because it allows a better understanding of coastal sediment sequences that are relevant to the petroleum industry.
High levels of oxygen likely accumulated in the
lake over millions of years as glacial ice melted, injecting trapped gases from air bubbles into its waters.
«It's almost crazy to think that they're going to, in just a few decades, be more different than they've
become over millions of years,» he says.
The fundamental hypothesis of evolutionary ecology is that processes taking place over a single growing season are ultimately responsible for patterns of biodiversity that
emerge over millions of years.
The answer, of course, lies in nature's delicate adjustments, worked out
over millions of years of massive trial and error, of survival experiments and adaptation and compromise.
The discovery won't mean much for climate change: The process
occurs over millions of years, and the amounts involved are small compared with human - driven emissions.
Jacquelyn Gill researches paleoecology and plant ecology — in other words, she studies the history of the global
climate over millions of years — at the University of Maine.
«But fundamentally, life has evolved
over millions of years with half the time dark and half the time light, and we have now enveloped our planet in a luminous fog of light.