Sentences with phrase «observational evidence»

"Observational evidence" refers to information that is gathered by carefully observing and recording what is happening or what has happened. It is evidence based on real-world observations rather than assumptions or theories. Full definition
They are the primary observational evidence for Global Warming and the human nature of it.
«Best practice» in its usual meaning relies on observational evidence, not models or theories.
The new findings are observational evidence supporting the idea that icy bodies are also present in other planetary systems, and have survived throughout the history of the star's evolution.
They had to wait until the early 1980s for the first observational evidence for a debris disk around any star to be uncovered.
The mean value and spread in climate models are essentially unchanged from AR4, but are now supported by stronger observational evidence and better process understanding of what determines relative humidity distributions.
But now one of the teams involved in the debate has produced the best observational evidence yet that there is more to red shifts than meets the eye.
There is much observational evidence to confirm what I say.
The effect of breastfeeding on mean body mass index throughout life: a quantitative review of published and unpublished observational evidence.
However, it is very difficult to obtain observational evidence of the interplay between such stars and their surroundings.
We know it exists by the extensive observational evidence of its gravitational effects in the cosmos.
The next most important observational evidence was the discovery of cosmic microwave background radiation in 1964.
A wealth of observational evidence made it possible to test the theory against a cosmic instead of a local background.
We also now have persuasive observational evidence of dramatic changes already taking place in the climate system, changes that are not in any sense small.
It would be nice, though, to have some direct observational evidence for the theory.
It provided observational evidence that proved the models were accurate.
Nor is there good observational evidence that air over the open ocean warms faster than SST.
With no laboratory or observational evidence of biological disruption, I see no economic disruption of commercial and recreational fisheries, nor harm to marine mammals, sea turtles or any other protected species.
Eichkorn, S., Wilhelm, S., Aufmhoff, H., Wohlfrom, K. H. & Arnold, F. Cosmic ray - induced aerosol - formation: first observational evidence from aircraft - based ion mass spectrometer measurements in the upper troposphere.
In contrary, the only observational evidence shows a cold bias (as has been corrected for the Lin et al. paper after some e-mail discussion with the authors).
Many lines of observational evidence suggest that this «positive feedback» also has been greatly exaggerated.»
Similar ideas have also addressed the possibility of a fainter young Sun, but direct observational evidence in the geological record is currently lacking, making it the subject of debate among scientists.
Only observational evidence — no controlled studies — suggests that the procedure is effective, and doctors worry that shared poo could transmit hard - to - detect nasties.
scientists disagree about the causes of climate change for the following reasons: Insufficient observational evidence Disagreement about the value of different classes of evidence (e.g. models) Disagreement about the appropriate logical framework for linking and assessing the evidence Assessments of areas of ambiguity and ignorance Belief polarization as a result of politicization of the science.

Phrases with «observational evidence»

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