24 research outputs found
Emergent risks in the Mt. Everest region in the time of anthropogenic climate change
In April and May 2019, as a part of the National Geographic and Roxel
Perpetual Planet Everest Expedition, the most interdisciplinary scientific ever
was launched. This research identified changing dynamics, including emergent
risks resulting from natural and anthropogenic change to the natural system. We
have identified compounded risks to ecosystem and human health, geologic
hazards, and changing climate conditions that impact the local community,
climbers, and trekkeers in the future. This review brings together perspectives
from across the biological, geological, and health sciences to better
understand emergent risks on Mt. Everest and in the Khumbu region.
Understanding and mitigating these risks is critical for the ~10,000 people
living in the Khumbu region, as well as the thousands of visiting trekkers and
the hundreds of climbers who attempt to summit each year.Comment: 21 pages, 2 figure
An Overview of Physical Risks in the Mt. Everest Region
In April and May 2019, as part of National Geographic and Rolex's Perpetual Planet Everest
Expedition, an interdisciplinary scientific effort conducted a suite of research on the mountain
and recognized many changing dynamics, including emergent risks resulting from natural and
anthropogenic changes to the biological system. In this paper, the diverse research teams
highlight risks to ecosystem and human health, geologic hazards, and changing climbing
conditions that may affect the local community, climbers, and trekkers in the future. This Primer
brings together perspectives from across the atmospheric, biological, geological, and health
sciences to better understand emergent risks on Mt. Everest and in the Khumbu region.
Understanding these risks is critical for the ~10,000 people living in the Khumbu region, the
thousands of visiting trekkers, and the hundreds of climbers who attempt to summit each year
A922 Sequential measurement of 1 hour creatinine clearance (1-CRCL) in critically ill patients at risk of acute kidney injury (AKI)
Meeting abstrac
Trends in extreme daily rainfall and temperature indices over South Asia
Over the last few decades, weather and climate extremes have become a major focus of researchers, the media and general public due to their damaging effects on human society and infrastructure. Trends in indices of climate extremes are studied for the South Asian region using high-quality records of daily temperature and precipitation observations. Data records from 210 (265) temperature (precipitation) observation stations are analysed over the period 1971-2000 (1961-2000). Spatial maps of station trends, time series of regional averages and frequency distribution analysis form the basis of this study. Due to the highly diverse geography of the South Asian region, the results are also described for some specific regions, such as the island of Sri Lanka; the tropical region (excluding Sri Lanka); the Greater Himalayas above 35°N, the Eastern Himalayas (Nepal) and the Thar Desert. Generally, changes in the frequency of temperature extremes over South Asia are what one would expect in a warming world; warm extremes have become more common and cold extremes less common. The warming influence is greater in the Eastern Himalayas compared with that in the Greater Himalayas. The Thar Desert also shows enhanced warming, but increases are mostly less than in the Eastern Himalayas. Changes in the indices of extreme precipitation are more mixed than those of temperature, with spatially coherent changes evident only at relatively small scales. Nevertheless, most extreme precipitation indices show increases in the South Asia average, consistent with globally averaged results. The indices trends are further studied in the context of Atmospheric Brown Clouds (ABCs) over the region. Countries falling within the ABC hotspot namely Indo-Gangetic Plain (IGP) have shown a different behaviour on the trends of extreme indices compared with the parts outside this hotspot. IGP has increased temperature and decreased rainfall and tally closely with the actual trends