Search

Observations of the 210 m (650) high York terrace and other wave-cut surfaces, the distribution of distinctive erratics, and the distribution and nature of both onshore and offshore sediments suggest that one or more high sea level stands are the primary control on Pleistocene landforms of the western Seward Peninsula. The widespread erratics of the region are thought to have been mobilized and dispersed by shore-ice racing and sea ice movements rather than by movement of glacial ice accumulations. Glaciers do not appear to have developed in the York Mountains and the few local surface features previously mapped as moraine are thought to be erratic accumulations, stream terrace deposits, or talus and landslide deposits. Pleistocene to Recent faulting likely contributed to some landform elevations and possibly to discontinuities in their present distribution. At the time of the high sea level stand that created the York terrace, the York Mountains would have been an island archipelago; a cape analogous to the present Cape Prince of Wales was present along the southwest bank of the York Mountains, and much of the area west of the York Mountains was below sea level and scoured by north-flowing currents. These currents appear to have removed bottom sediments, transported them northward, and deposited them in a shoal in the Chukchi Sea analogous to today's active Prince of Wales shoal. Cape Mountain would have been an isolated island at this time. The York terrace high sea level stand could have affected other parts of Seward Peninsula, such as the Pilgrim River gap (elevation of 60 m [200]). Flooding of this pass would have created a seaway between the estuary of the Niukluk River drainage and the now intertidal Imuruk Basin. Sea levels higher than those forming the York terrace seem to be indicated in some areas. This study synthesizes observations incidental to reconnaissance geologic investigations for other purposes and its principal interpretations and conclusions need to be more completely evaluated and tested. Hopefully, this report will help foster future investigations of the Pleistocene history of Seward Peninsula. [ABSTRACT FROM AUTHOR]

An important yet less studied factor in determining the extent of adaptation to climate change is information: are people adequately informed about their vulnerability to future climate-related risks, and does their willingness to adapt depend on this knowledge? Focusing on how communication about projected sea level rise (SLR) affects the willingness to migrate, we implemented a large randomized control survey experiment with a nationally representative sample of more than 7,000 respondents across all provinces in Vietnam. We randomly assign respondents to different information treatments. We find that providing a simple text-based information treatment about the general extent of Vietnam's exposure to projected SLR increases all respondents' willingness to migrate (including respondents living in areas not vulnerable to SLR). However, a more spatially precise map information treatment-providing the general text along with a map showing Vietnam's projected SLR exposure-leads to a more targeted effect: it only significantly increases the willingness to migrate of respondents currently residing in vulnerable areas. Finally, adding doubt to the information treatments-mentioning an official repudiation of the scientific projection of SLR-does not reduce the treatments' impact. Our findings are inconsistent with the commonly used perfect information benchmark, which assumes that people are fully informed about future climate-related risks. They also highlight the importance of providing spatially precise information in facilitating climate adaptation. [ABSTRACT FROM AUTHOR]

This makes Airtel the only private telecom service provider to offer its services 16700 ft. above the sea level [ABSTRACT FROM AUTHOR]

This makes Airtel the only private telecom service provider to offer its services 16700 ft. above the sea level [ABSTRACT FROM AUTHOR]

The article focuses on open-access articles published in "Nature" which discuss details of the geological processes that take place in submarine canyons. It mentions canyons are fed with sediment by rivers or longshore drift and post-glacial sea-level rise has disconnected more than two-thirds of the world's submarine canyons from their sediment sources. It also mentions cognisance should be taken of turbidity current activity in land-detached submarine canyons.

Strongly deformed marine terraces differ in their degree of development and preservation along 65 km of the coast between Fairweather Glacier and Icy Point in the Lituya Bay area of the eastern Gulf of Alaska. From Fairweather Glacier to Lituya Bay one prominent terrace flanks the coastal mountain front, and isolated remnants of a lower, younger terrace occur landward of a wide prograded coastal plain. From Lituya Bay to Crillon River a sequence of five well-developed terraces bevel the coastal foothills. From Finger Glacier to Icy Point four terraces and the possible remnants of a fifth occur. The terraces form an arch with an axis of maximum uplift near La Perouse Glacier. The deformation is progressively greater in the older terraces and shoreline angle relief on the highest terrace is 100 m or more. The terraces are of Pleistocene and Holocene age. The oldest terrace studied is not well dated but the next oldest may have formed during the post-Wisconsin sea level rise. The three Holocene terraces probably formed about 3,500 (3,990-2,960 cal yr BP), 1,000, and 500 years ago. Ongoing uplift and arching of the coastal zone may mark renewal of mid-Pleistocene folding, but Holocene uplift has taken place as discrete events that were probably accompanied by earthquakes. At least five uplift events have taken place between Lituya Bay and Icy Point in the past 3,000 to 4,000 years, which imply an average recurrence interval of ~500 years. Because recurrence of events that uplifted the terraces is distinctly longer than the average earthquake recurrence interval for the nearby Fairweather fault, coastal uplift may occur independently. The Finger Glacier fault displaces the Holocene terraces and may be a developing link between the onshore and offshore segments of the Fairweather fault. [ABSTRACT FROM AUTHOR]

There are an estimated 35 million tons of hazardous materials managed annually in the United States.1 In general, there is adequate capacity for the treatment and disposal of these materials through the year 2044. However, progress toward mitigating legacy sites where hazardous waste was produced and improperly disposed of has stalled. There are approximately 1,300 Superfund sites where cleanup activities are either incomplete or not yet begun, roughly the same number as four years ago. Meanwhile, the Superfund budget has remained essentially flat at around $1.1 billion over the last 10 years.2 The two other hazardous waste programs -- one for brownfields and one for hazardous waste regulated under the Resource Conservation and Recovery Act -- are also in a steady state. In general, grant funding for the Brownfields Program has increased, but the program is still oversubscribed, with just 30% of applicants receiving funding. Meanwhile, resilience is a growing concern at many hazardous waste sites. Around 60% of all nonfederal Superfund sites are located in areas that may be impacted by flooding, storm surge, wildfires, or sea level rise related to climate change effects.3. [ABSTRACT FROM AUTHOR]

The article offers information on Gulf of Corinth and Zakynthos in Greece. Topics include how sedimentation patterns and sea level changes have reshaped the geology of western Greece during the Holocene, the Arcadian Mountains on the southern shore of the Gulf of Corinth, association of younger sediments with extensive areas of badlands, and Ancient Corinth built on a terrace of Pleistocene sandy limestone.

The article discusses the issue associated with climate change to the loss of sea ice in the Arctic regions in 2012 and 2007, which resulted to physical changes including warming ocean, soil, and air temperatures. It mentions that the physical changes are expected to affect traditional livelihoods and cultures in the region and survival of polar bear and other animal populations.