Sentences with phrase «occur over the course of this century»

Looking forward, climate researchers have already predicted a rise in global temperatures to occur over the course of centuries, not the relatively gradual warming which occurred over thousands of years in the case Paleocene - Eocene Thermal Maximum.

Not exact matches

Regardless of which of them FIRST occurred to you, it should have dawned on you shortly thereafter that the meaning of the term had changed over the course of a century.

U.S. risk assessments generally assume that bridges may collapse when a 100 - year flood — a streamflow with 1 percent probability of being exceeded in any given year, or 63 percent over the course of a century — occurs.

For those curious about the pronounced dips in the future scenarios here they are responses to Pinatubo - scale volcanic eruptions that are assumed to occur at a reasonable frequency over the course of the next century.

Consequently, the next time a serious drought takes hold of some part of the world and the likes of Al Gore blame it on the «carbon footprints» of you and your family, ask them why just the opposite of what their hypothesis suggests actually occurred over the course of the 20th century, i.e., why, when the earth warmed - and at a rate and to a degree that they claim was unprecedented overthousands of years - the rate - of - occurrence of severe regional droughts actually declined.»

And the variation that's occurred in the sun's energy over the course of the 20th century just isn't significant enough to account for the large - scale climate change we're seeing here.