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Water News in Asian-Pacific Region
Amount of rainfall linked to soil pH worldwide
[Environmental Research Web] For many years, scientists have known there's a link between the amount of rainfall in a region and soil pH. Now, for the first time, a team from the US and China has investigated the soil pH¨Cwater-balance relationship on a global scale.
Local benefits highlight role of natural infrastructure in adaptive basin planning
[IUCN] Building water infrastructure such as dams contributes to economic development, food, and energy security depending on their objective. In developing countries it is often seen as the most cost effective way to increase electricity production and irrigated agriculture. However, reaching these national objectives can often come at a cost to nature and local livelihoods which depend on healthy ecosystems.
Known unknowns: indirect energy effects of information and communication technology
[IOPScience] There has been sustained and growing interest in characterizing the net energy impact of information and communication technology (ICT), which results from indirect effects offsetting (or amplifying) the energy directly consumed by ICT equipment. These indirect effects may be either positive or negative, and there is considerable disagreement as to the direction of this sign as well as the effect magnitude.
Carbon dioxide could ease drought impacts
[Climate News Network] Climate science may have over-estimated the menace of drought in the world of global warming. Because green plants will respond to extra carbon dioxide, the water taken up by the roots could be halved.
Spatially explicit global population scenarios consistent with the Shared Socioeconomic Pathways
[Environmental Research Letters] The projected size and spatial distribution of the future population are important drivers of global change and key determinants of exposure and vulnerability to hazards. Spatial demographic projections are widely used as inputs to spatial projections of land use, energy use, and emissions, as well as to assessments of the impacts of extreme events, sea level rise, and other climate-related outcomes.
Rising emissions usher in climate reality era
[Climate News Network] Humanity has now entered a new climate reality era, with carbon dioxide concentrations expected to remain above the level of 400 parts per million throughout 2016 and for many generations to come, the World Meteorological Organization says.
Modeling links between air and ground in climate over the last millennium
[Canada Research Chair in Climate Dynamics News] General Circulation Models (GCMs) are complex mathematical tools used to simulate the past, recent and future evolution of the Earth's climate. Each GCM uses different approaches to solve the mathematical equations that describe the physical phenomena and processes driving our planet's climate.
FAO and El Niño
[FAO] Agriculture is one of the main sectors of the economy that could be severely affected by the El Niño phenomenon. While drought is the main threat to food production, El Niño can also cause heavy rains, flooding or extremely hot or cold weather. This can lead to animal disease outbreaks, including zoonosis and food-borne diseases, as well as plant pests and forest fires. In previous El Niño events, people whose livelihoods depend on fisheries have been heavily affected in certain areas.
Measuring how ecosystems regulate rivers
[IWMI] The natural systems in landscapes regulate river flows by storing and releasing water between seasons and by altering evapotranspiration (water emitted by soil and plants). In some cases, these ecosystems can help protect human populations against the destruction and hardship caused by floods or water shortages by reducing flood peaks and enhancing dry-season flows.
Intense rain recharges tropical aquifers
[Environmental Research Web] By 2050 it¡¯s likely that more than half the world¡¯s population will live in the tropics, boosting demand for water. Now scientists have confirmed that groundwater across the zone tends to recharge most in response to intensive rainfall.
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IAHR Asian and Pacific Regional Division (IAHR-APD)
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