Sentences with phrase «modern global ice»

«Time periods with less than twice the modern global ice volume show almost no indications of sea level rise faster than about 2 metres per century,» said Dr Grant.

Not exact matches

Anthropogenic climate change and resulting sea level rise are now happening much more rapidly than at the transition from the last ice age to the modern global climate.

This year's Arctic sea ice cover currently is the sixth - lowest on modern record, a ranking that raises ongoing concerns about the speed of ice melt and the effects of ice loss on global weather patterns, geopolitical fights, indigenous peoples and wildlife, scientists said yesterday.

By combining that with modern tools such as the Global Positioning System and remote sensing, a deeper understanding of the fundamental nature of the ice can be gained as it changes.

But in a new study in Nature, researchers show that the deep Arctic Ocean has been churning briskly for the last 35,000 years, through the chill of the last ice age and warmth of modern times, suggesting that at least one arm of the system of global ocean currents that move heat around the planet has behaved similarly under vastly different climates.

It's a long paper with a long title: «Ice melt, sea level rise and superstorms: evidence from paleoclimate data, climate modeling, and modern observations that 2 oC global warming could be dangerous».

«Ice melt, sea level rise and superstorms: evidence from paleoclimate data, climate modeling, and modern observations that 2o C global warming could be dangerous»

The full title is: «Ice melt, sea level rise and superstorms: evidence from paleoclimate data, climate modeling, and modern observations that 2 o C global warming could be dangerous ``.

On July 23, I wrote about the rocky rollout, prior to peer review, of «Ice Melt, Sea Level Rise and Superstorms: Evidence from Paleoclimate Data, Climate Modeling, and Modern Observations that 2 °C Global Warming is Highly Dangerous.»

I read recently (in E. C. Pielou, «After the Ice Age») that toward the end of the last ice age — but long before the glaciers had receded from the continental U.S. — average global temperatures climbed to 2 - 3 degrees Centigrade above those of the modern era, a condition that obviously reversed at some poiIce Age») that toward the end of the last ice age — but long before the glaciers had receded from the continental U.S. — average global temperatures climbed to 2 - 3 degrees Centigrade above those of the modern era, a condition that obviously reversed at some poiice age — but long before the glaciers had receded from the continental U.S. — average global temperatures climbed to 2 - 3 degrees Centigrade above those of the modern era, a condition that obviously reversed at some point.

-- Susan Solomon, Nature The Long Thaw is written for anyone who wishes to know what cutting - edge science tells us about the modern issue of global warming and its effects on the pathways of atmospheric chemistry, as well as global and regional temperatures, rainfall, sea level, Arctic sea - ice coverage, melting of the continental ice sheets, cyclonic storm frequency and intensity and ocean acidification.

The evidence suggests that Modern Global Warming is within Holocene variability, but the cryosphere displays a non-cyclical retreat that appears to have undone thousands of years of Neoglacial ice advance.

«Ice melt, sea level rise and superstorms: evidence from paleoclimate data, climate modeling, and modern observations that 2 C global warming could be dangerous» J Hansen, M Sato, P Hearty, R Ruedy, M Kelley, V Masson - Delmotte,... Atmospheric Chemistry and Physics 16 (6), 3761 - 3812, 2016

The initial title of «Ice melt, sea level rise and superstorms: evidence from paleoclimate data, climate modeling, and modern observations that 2 °C global warming is highly dangerous» had the final phrase changed to «could be dangerous.»

Originally posted on Open Mind: A new paper by Hansen et al., Ice melt, sea level rise and superstorms: evidence from paleoclimate data, climate modeling, and modern observations that 2 °C global warming is highly dangerous is currently under review...

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.

In essence, these two climate research agencies have purposefully cooled the past; and then warmed the modern temperatures in an effort to make global warming seem more severe than actually has taken place since the Little Ice Age.

A (2) Modern warming, glacier and sea ice recession, sea level rise, drought and hurricane intensities... are all occurring at unprecedentedly high and rapid rates, and the effects are globally synchronous (not just regional)... and thus dangerous consequences to the global biosphere and human civilizations loom in the near future as a consequence of anthropogenic influences.

The cities» lawsuits allege — supported by modern climate science — that major oil and natural gas companies contribute substantially to global warming by extracting and using fossil fuels, which emit massive quantities of heat - trapping greenhouse gases into the atmosphere, causing ocean waters to warm and ice sheets to melt, and thus, sea levels to rise, endangering coastal communities.

Responding to and in the manner of KK Tung's UPDATE (and, you can quote me): globally speaking the slowing of the rapidity of the warming, were it absent an enhanced hiatus compared to prior hiatuses, must at the least be interpreted as nothing more than a slowdown of the positive trend of uninterrupted global warming coming out of the Little Ice Age that has been «juiced» by AGW as evidenced by rapid warming during the last three decades of the 20th Century, irrespective of the fact that, «the modern Grand maximum (which occurred during solar cycles 19 — 23, i.e., 1950 - 2009),» according to Ilya Usoskin, «was a rare or even unique event, in both magnitude and duration, in the past three millennia [that's, 3,000 years].»

Attempts to calculate global temperature changes during the MWP, even using modern instrumental and ice - core sampling techniques, have been inconclusive.

RELATED: Home Impacts of Global Warming Government: The View from Washington, DC The Modern Temperature Trend Rapid Climate Change Supplements: Wintry Doom Ice Sheets & Rising Seas

In the most recent period, we observe a millennial separation between warm periods: Modern Global Warming (present), Medieval Warm Period (~ 1100 AD), Roman Warm Period (~ 100 AD); and between cold periods: Little Ice Age (~ 1650 AD; E1), and Dark Ages Cold Period (~ 650 AD; E2).

Sources as varied as marine sediments, corals, tree rings, stalagmites, boreholes, the length of glacial tongues, ice cores, and lake sediments all independently confirm that modern global temperatures are anomalously high.

Eli, and the bunnies, have been following the on line review of Ice melt, sea level rise and superstorms: evidence from paleoclimate data, climate modeling, and modern observations that 2 °C global warming is highly dangerous by J. Hansen, M. Sato, P. Hearty, R. Ruedy, M. Kelley, V. Masson - Delmotte, G. Russell, G. Tselioudis, J. Cao, E. Rignot, I. Velicogna, E. Kandiano, K. von Schuckmann, P. Kharecha, A. N. Legrande, M. Bauer, and K. - W.

That might have changed this week with the coverage of announcement of «Ice Melt, Sea Level Rise and Superstorms: Evidence from Paleoclimate Data, Climate Modeling, and Modern Observations that 2 °C Global Warming is Highly Dangerous» by James Hansen and 16 other eminent scientists.

Interactive comment on «Ice melt, sea level rise and superstorms: evidence from paleoclimate data, climate modeling, and modern observations that 2C global warming is highly dangerous» by J. Hansen et al..

«It is unlikely that coastal cities or low - lying areas such as Bangladesh, European lowlands, and large portions of the United States eastern coast and northeast China plains could be protected against such large sea level rise,» states a report co-authored by Hansen, titled «Ice Melt, Sea Level Rise and Superstorms: Evidence from Paleoclimate Data, Climate Modeling, and Modern Observations that 2 °C Global Warming is Highly Dangerous».

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.

He did do the first quantitative outlook of the effects of CO2 changes on global temperature (of which he got very lucky in being close to modern estimates), but his target was largely to examine the coming and going of ice ages.

[Also, just to give an idea of the change we are talking about, 5 degrees Celsius might not sound like much, but that is the difference in global average temperature between the coldest period of an ice age and the hottest period of a warm period or «interglacial» in the Earth's glacial history in the modern epoch.]