Sentences with phrase «increase sea level rise projections»

Future changes in the Greenland and Antarctic ice sheet mass, particularly due to changes in ice flow, are a major source of uncertainty that could increase sea level rise projections.

Not exact matches

«By refining the spatial pattern of mass loss in the world's second largest — and most unstable — ice sheet, and learning how that pattern has evolved, we are steadily increasing our understanding of ice loss processes, which will lead to better - informed projections of sea level rise.»

New projections considering changes in sea level rise, tides, waves and storm surge over the 21st century find global warming could cause extreme sea levels to increase significantly along Europe's coasts by 2100.

Sea - level rise is expressed relative to 2006, and projections assume that emissions will continue to increase unabated (IPCC scenario RCP8.5).

When you add in climate trends including sea level rise, which can increase the height of storm surge, and projections of fewer but more intense hurricanes, you have a recipe for increased vulnerability and losses in these regions in the future.

The conclusion that the Greenland ice sheet melting was significantly enhanced by the increased N. Hemispheric insolation during the Eemian affects projections of future (near term) sea level rise insofar as Greenland melt contributed to the Eemian sea level rise.

Similarly, the 1990 best estimate sea level rise projection overstated the resulting increase, whereas the 2001 projection understated that rise.»

The Royal Society report includes references to Clark et al, 2016 in Nature Climate Change, suggesting the final sea level rise on millennia timescale caused by anthropogenic climate change (partly depending on future emissions) lies in a range between 29 to 55 metres and to DeConto & Pollard, 2016 in Nature, a study suggesting hydro - fracturing and ice cliff collapse around Antarctic ice sheets increases high end projection for sea level rise by 2100 to ± 2 metres.

The rate of sea - level rise even under the lowest projection would increase the chances of severe flooding on the Texas Gulf Coast from storm surges or other causes from once every five years to once every two years by 2030 under the extreme projection, and 2060 under the low prediction.

The projection that sea - level rise could increase flooding, particularly on the coasts of eastern Africa, will have implications for health.

The IPCC projections of sea level rise are based largely on the slow, steady and inexorable thermal expansion of the oceans (as water heats, its volume increases) with some additional contributions from the melting of mountain glaciers (almost all of which are expected to be gone by mid century).

Given the increased levels of certainty regarding human - induced global warming (from 90 to 95 %), more robust projections on sea - level rise and data on melting of ice sheets, and the «carbon budget» for staying below the 2 °C target, the WGI conclusions together with other AR5 component reports are likely to put more pressure on the UNFCCC parties to deliver by 2015 an ambitious agreement that is capable of preventing dangerous anthropogenic interference with the climate system.

«We conclude that, if projections for an increasing frequency of extreme El Niño and La Niña events over the twenty - first century are confirmed, then populated regions on opposite sides of the Pacific Ocean basin could be alternately exposed to extreme coastal erosion and flooding, independent of sea - level rise,» the authors write.

The projections will provide more details about sea - level rise, for which observations show rates increasing, and should give a more precise estimate of the levels we will see at the end of the century.

For the Baltic and Arctic coasts, sea - level rise projections under some SRES scenarios indicate an increased risk of flooding and coastal erosion after 2050 (Johansson et al., 2004; Meier et al., 2004, 2006; Kont et al., 2007).

Current limitations of ice - sheet modelling also increase uncertainty in the projections of 21st - century sea - level rise (Meehl et al., 2007 Section 10.6.4.2) used to assess coastal impacts in this report.

Including the effects of physical mechanisms that can quickly increase ice sheet discharge significantly raises sea level rise projections under high - emission scenarios.

The range of sea - level rise is slightly larger than the estimates from the IPCC models of 18 — 76 cm, but is sufficiently similar to increase confidence in the projections.

Projections of sea - level rise remain notably uncertain even if the increase in greenhouse gases is specified accurately, but many recently published estimates include within their range of possibilities a rise of 1m by the end of this century (reviewed by Moore et al., 2013).

But there are two climate - related issues that we need to consider now: rising sea level (which is already affecting the magnitude of storm surges, which in practice do much of the damage in hurricanes and other coastal storms), and projections that the incidence of very intense hurricanes should increase in the 100 - year time scale.

Projections for sea level rise in New York City increase from 11 inches to 21 inches by the 2050s, 18 inches to 39 inches by the 2080s, and, 22 inches to 50 inches, with the worst case of up to six feet, by 2100.

Jim D, if you and others like you aren't willing to do what must be done to greatly increase the price of carbon, then all your talk of ice sheet melting, sea level rise, climate tipping points, global temperature trends, the earth's paleoclimate history, and climate model projections — all of that talk is mere Kabuke theater.

«Data from the past helped calibrate our model, and will improve sea level rise projections under scenarios of future temperature increases,» says Rahmstorf.

None of these could have been caused by an increase in atmospheric CO2, Model projections of warming during recent decades have greatly exceeded what has been observed, The modelling community has openly acknowledged that the ability of existing models to simulate past climates is due to numerous arbitrary tuning adjustments, Observations show no statistically valid trends in flooding or drought, and no meaningful acceleration whatsoever of pre-existing long term sea level rise (about 6 inches per century) worldwide, Current carbon dioxide levels, around 400 parts per million are still very small compared to the averages over geological history, when thousands of parts per million prevailed, and when life flourished on land and in the oceans.

So in summary, AR5 will attempt to project factors that were specifically excluded in AR4, factors that will tend to increase overall projections, say, for ice melt and sea level rise.