Sentences with phrase «until uncertain time»

Not exact matches

Until now, the timing of this interbreeding was uncertain — dated to between 37,000 and 86,000 years ago.

«Both [Fall et al. 2011 and Menne et al. 2010](and cited by Muller et al) do an analysis over a thirty year time period while the Muller et al paper uses data for comparison from 1950 — 2010... I see this as a basic failure in understanding the limitations of the siting survey we conducted on the USHCN, rendering the Muller et al paper conclusions highly uncertain, if not erroneous... I consider the paper fatally flawed as it now stands, and thus I recommend it be removed from publication consideration by JGR until such time that it can be reworked... it appears they have circumvented the scientific process in favor of PR.»

«We became the Earth's infection a long and uncertain time ago, but it was not until about 200 years ago that the Industrial Revolution began: then the infection of the Earth became irreversible,» he says.