Sentences with phrase «above modern levels»

The most recent major study of ice in the geologic past found that about 130,000 years ago the seas were «several meters above modern levels» and that polar temperatures sufficient to cause a several - meter sea - level rise may eventually result from artificial global warming.

Taken together, the average of the warmest times during the middle Pliocene presents a view of the equilibrium state of a globally warmer world, in which atmospheric CO2 concentrations (estimated to be between 360 to 400 ppm) were likely higher than pre-industrial values (Raymo and Rau, 1992; Raymo et al., 1996), and in which geologic evidence and isotopes agree that sea level was at least 15 to 25 m above modern levels (Dowsett and Cronin, 1990; Shackleton et al., 1995), with correspondingly reduced ice sheets and lower continental aridity (Guo et al., 2004).

Why should warming during the current Holocene Interglacial be significantly different / less than during the previous Eemian Interglacial (MIS5e), when sea levels were, per the IPCC's own comments, above modern levels or for that matter above the purported mid-Holocene highstand?

«Studies have shown that both the Greenland and Antarctic ice sheets contributed significantly to this sea level rise above modern levels,» said Anders Carlson, an Oregon State University glacial geologist and paleoclimatologist, and co-author on the study.

shows the last interglacial sea level which rises to a peak about 9 meters higher than present early in the interglacial, then over a period of thousands of years falls to a bit below modern level, then over the next few thousand years rises 9 meters above modern level again.

Not exact matches

Modern ethics has - sought to rise above the mundane level of everyday discourse in the pursuit of the universal and the objective, the great overarching principles whereby ethical decisions can be made.

We only use a premium maca that is organically grown in a region totally untouched by modern chemical farming techniques or polluting industrial activity: the pristine Junin valley of the Andes mountains, 14,500 feet above sea level.

Honda says the interior of the Clarity trio also sets it above the competition because of the premium level of comfort and refinement from the modern and sophisticated design.

Pullbacks work well, but modern algorithms often push price above a broken level to squeeze shorts and draw in weak - handed buyers, before resuming a downtrend.

Its modern spaces rise 77 levels above the world - famous Surfers Paradise coastline, an endless playground.

Regardless of the impending movie's level of success, Venom is more than deserving of a well - crafted modern video game and there are a few key elements that can help drive the title to go above and beyond.

As you can see in the before (above) and after (below), new developers The Coalition have avoided taking any liberties with the characters but have done well in boosting their detail to a level that makes the game look comparable to modern titles.

Thus you should look at the Vermeer & Rahmstorf (2009) study linked above, which correlates the tide gauge record with global mean temperature since 1880 and shows that the modern acceleration of sea level rise is closely related to modern global warming.]

A new study confirms that carbon pollution has ended the era of the stable climate conditions that enabled the development of modern civilization High levels of carbon pollution have caused global temperatures to rise above the slow - changing, relatively stable conditions that existed «when humans were figuring out where the climate — and rivers and sea levels — were most suited for living and farming.»

During the past 20,000 years (the Holocene), since the end of the last glaciation, sea level has risen a total of about 120 m above modern shorelines, initially at a rate many times faster than observed anywhere today.

Based on proxy records from ice, terrestrial and marine archives, the LIG is characterized by an atmospheric CO2 concentration of about 290 ppm, i.e., similar to the pre-industrial (PI) value13, mean air temperatures in Northeast Siberia that were about 9 °C higher than today14, air temperatures above the Greenland NEEM ice core site of about 8 ± 4 °C above the mean of the past millennium15, North Atlantic sea - surface temperatures of about 2 °C higher than the modern (PI) temperatures12, 16, and a global sea level 5 — 9 m above the present sea level17.

This separation and exclusion of the war time period also reflects that the two data bases are not constructed on a like for like basis, and that potentially the modern era data has a greater chance of having somewhat more meaning than the data collected prior to 1940, although the accuracy levels claimed by Phil Jones (above) stretches credulity somewhat.

The modern CO2 rise is about 100ppmv... and the curve is close to linear once the CO2 level rises above 50ppmv... so this latest 100ppmv should have delivered another 2 watts per square metre, as indeed IPCC calculate it has.

They found that when temperatures hovered near, or just above, modern day global averages, sea levels rose by around 20 feet.

«We estimate sea level for the Middle Pliocene epoch [3.0 — 3.5 million years ago]-- a period with near - modern CO2 levels — at 25 ± 5 metres above present, which is validated by independent sea - level data» (Rohling, Grant et al., 2009).