Results 31 to 40 of about 2,603,420 (250)

Assessment of Heavy Metal Contamination in Paddy Field Soils: A Case Study in Ranau Valley, Sabah, Malaysia [PDF]

open access: yesE3S Web of Conferences
The weathering of ultrabasic rocks surrounding the Ranau Valley in Sabah, Malaysia, contributes to the formation of soils with elevated concentrations of heavy metals.
Ahmad Damanhuri Nadrah   +2 more
doaj   +1 more source

Representation of tropical deep convection in atmospheric models - Part 1 : Meteorology and comparison with satellite observations [PDF]

open access: yes, 2011
Fast convective transport in the tropics can efficiently redistribute water vapour and pollutants up to the upper troposphere. In this study we compare tropical convection characteristics for the year 2005 in a range of atmospheric models, including ...
Telford, P. J.   +12 more
core   +6 more sources

Strengthening atmospheric circulation and trade winds slowed tropical Pacific surface warming

open access: yesCommunications Earth & Environment, 2023
The globally averaged sea-surface temperature (SST) has steadily increased in the last four decades, consistent with the rising atmospheric greenhouse gas concentrations.
Mojib Latif   +9 more
doaj   +1 more source

Parameterization of energy cycles between the hemispheres

open access: yesScience Progress, 2020
Seasonal variations in the temperatures of the hemispheres induce seasonal energy cycles between the hemispheres that drive tropical cyclones. Because the northern hemisphere has warmed more than the southern hemisphere, climate energy cycles develop ...
Nabil H Swedan
doaj   +1 more source

Smallholder farmers’ attitudes and determinants of adaptation to climate risks in East Africa

open access: yesClimate Risk Management, 2017
Adapting to climate risks is central to the goal of increasing food security and enhancing resilience of farming systems in East Africa. We examined farmers’ attitudes and assessed determinants of adaptation using data from a random sample of 500 ...
Kelvin M. Shikuku   +6 more
doaj   +1 more source

Tropical South American Rainfall Response to Dansgaard-Oeschger Stadials of Marine Isotope Stage 5

open access: yesFrontiers in Earth Science, 2022
Tropical precipitation patterns will most likely be altered by future climate change, with major socioeconomic consequences for human populations that are highly reliant on water availability for subsistence like populations in northeastern (NE) Brazil ...
Igor M. Venancio   +9 more
doaj   +1 more source

A Pentaradial and Bilateral Combined Photoreception System in the Sea Cucumber is Mediated by a Blue Light‐Sensitive R‐Opsin

open access: yesAdvanced Science, EarlyView.
The sea cucumber Holothuria leucospilota detects blue and adjacent wavelengths of light via an r‐opsin with a maximum absorption at 459 nm. In the oral tentacles, papillae, and tube feet, distinct light‐sensing structures with specialized morphologies are formed, constituting a unique pentaradial and bilateral combined photoreception system.
Jiasheng Huang   +20 more
wiley   +1 more source

Soil Inorganic Electron Acceptors and Carbon Substrates Hierarchically Govern Wetland Methanogenesis Temperature Response

open access: yesAdvanced Science, EarlyView.
ABSTRACT Wetlands constitute Earth's largest natural methane (CH4) source, yet projections of their climate feedback remain uncertain due to poorly constrained temperature sensitivity (Q10‐CH4) of microbial methanogenesis. While water table dynamics have been demonstrated to regulate wetland methanogenesis by altering key soil conditions such as ...
Shuying Qiu   +6 more
wiley   +1 more source

Climate change 2015: growing risks, critical choices [PDF]

open access: yes, 2015
This latest Climate Council report provides an update of climate change science, impacts and risks. This report draws from the massive body of evidence that human activities - primarily from the burning of coal, oil and gas - are driving dramatic changes
Climate Council
core  

Iron‐Mediated Release of Aged Dissolved Organic Carbon From Waterlogged Peatland Under Warming

open access: yesAdvanced Science, EarlyView.
This study conducts a five‐year in situ warming experiment in high‐altitude peatlands to examine dissolved organic carbon (DOC) release. The study shows that warming promotes the release of plant‐derived modern DOC in drained peatlands, but amplifies aquatic export of century‐old DOC from waterlogged peatlands via Fe‐mediated DOC mobilization—a ...
Guohua Dai   +18 more
wiley   +1 more source

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