atmospheric water harvesting Articles

  • The impact of atmospheric wet deposition on roof runoff quality in an urbanized area

    Understanding the sources of chemical components in roof runoff can help to prevent water quality problems in rooftop rainwater harvesting. To identify the contribution of wet deposition to the mass of components in roof runoff, the samples from air, rainwater, dust buildup and roof runoff were collected from an urban site in Shenzhen of China in 2011–2012. The results indicate that: (1) wet ...


    By IWA Publishing

  • Quality assessment of rainwater and harvested rainwater stored in different types of cisterns

    Rainwater is widely collected and stored in cisterns for domestic use due to extreme water scarcity and poor water quality on the Loess Plateau, China. However, little information exists on the effects of cistern materials and construction methods on water quality. This study assessed the quality of rainwater and harvested rainwater stored in different types of cisterns, using multivariate ...


    By IWA Publishing

  • Contributions to the design of rainwater harvesting systems in buildings with green roofs in a Mediterranean climate

    Green roofs (GRs) are becoming a trend in urban areas, favouring thermal performance of buildings, promoting removal of atmospheric pollutants, and acting as possible water collection spots. Rainwater harvesting systems in buildings can also contribute to the management of stormwater runoff reducing flood peaks. These technologies should be enhanced in Mediterranean countries where water ...


    By IWA Publishing

  • Managed aquifer recharge: the widening gap between law and policy in India

    The past decade has witnessed discussions on various options to overcome groundwater depletion, such as rainwater harvesting (RWH) and ‘artificial recharge’ methods. This paper addresses law and policy issues relating to managed aquifer recharge (MAR). Based on an analysis of the National Water Policy of India and water polices and laws of the Indian states, a concrete case study, namely ...


    By IWA Publishing

  • Changes in European precipitation seasonality and in drought frequencies revealed by a four-century-long tree-ring isotopic record from Brittany, western France

    A new paleoclimatic reconstruction for western France is obtained from tree-ring cellulose stable isotopes. Living trees from Rennes Forest and beams from two ancient buildings in Rennes city have been combined to cover the past four centuries with a gap from 1730 to 1750. The cellulose 13C reflects the progressive changes in atmospheric CO2 isotopic composition. The combined 13C and 18O ...


    By Springer

  • Shellfisheries: Time to prepare for ocean acidification

    Both physical and social factors must be considered as coastal communities brace for an uncertain future. Oceans are gradually becoming warmer and more acidic as more carbon dioxide enters the atmosphere — two shifts that are altering the economic foundations of many coastal regions. In a ...


    By Ensia

  • Save money, save carbon

    As a way of saving money in a financially difficult time, engaging in a resource efficiency programme can help organsations cut costs from waste, water, packaging, emissions and supply chain wastage. Embedding a resource efficient approach to procurement business can proactively work with suppliers that offer cost effective solutions as well as environmentally preferable options. In the UK there ...


    By Crowberry Consulting

  • Trust and Hospitality in the Chicorral Community, Ixtahuacán, Sololá, Guatemala

    For those who have all the basic services, it may be hard to conceive of the extreme poverty faced by the indigenous K'iche communities. My first experience in the Bio-rights initiative was to visit Chicorral, the most remote and difficult to access community, and smallest with only 20 families. In ...


    By Wetlands International

  • Mangrove coasts: a muddy story (Part 3)

    In my first blog, I introduced the term “ecosystem services”, which has become a popular way to refer to the value of ecosystems. This is an important concept as it provides a counter-argument to the often narrow-minded and short-eyed approach of ...


    By Wetlands International

  • Going green in 2012: 12 steps for the developing world

    Many of us are thinking about the changes we want to make this year. For some, these changes will be financial; for others, physical or spiritual. But for all of us, there are important resolutions we can make to “green” our lives. Although this is often a subject focused on by industrialized nations, people in developing countries can also take important steps to reduce their growing ...


    By Worldwatch Institute

  • A warming world means more destructive storms

    Elevated global temperatures bring a number of threats, including rising seas and more crop-withering heat waves. Higher surface water temperatures in the tropical oceans also provide more energy to drive tropical storm systems, leading to more-destructive hurricanes and typhoons. The combination of rising seas, more powerful storms, and stronger storm surges can be devastating. Just how ...


    By Earth Policy Institute

  • A civilizational tipping point

    In recent years there has been a growing concern over thresholds or tipping points in nature. For example, scientists worry about when the shrinking population of an endangered species will fall to a point from which it cannot recover. Marine biologists are concerned about the point where overfishing will trigger the collapse of a fishery. We know there were social tipping points in earlier ...


    By Earth Policy Institute

  • Innovation Key To Biosolids Digestion

    A $400 million project at the Blue Plains Advanced Wastewater Treatment Plant (AWTP) in Washington, D.C., involves building an innovative biosolids management system comprised of a thermal hydrolysis process, four 3.8-million gallon mesophilic digesters (measuring 70-ft tall by 100-ft in diameter) with fixed covers, a cogeneration system consisting of three 4.6-MW Solar Mercu ry 50 gas turbines ...


    By BioCycle Magazine

  • Urban sustainability issues — Resource-efficient cities: good practice

    Our current pattern of resource use is leading to the depletion and, consequently, scarcity of natural resources (1), the degradation of ecosystems and volatile and increasing prices of natural resources. On a planet with finite resources, the challenge is to find a way of delivering greater value and more services with fewer inputs (EC, 2011a). Resources are defined as raw materials, such as ...

  • Three ways artificial intelligence is helping to save the world

    As computers get smarter, scientists look at new ways to enlist them in environmental protection. When you think of artificial intelligence, the first image that likely comes to mind is one of sentient robots that walk, talk and emote like humans. But there’s a different kind of AI that’s becoming prevalent in nearly all of the sciences. It’s known as machine ...


    By Ensia

  • OSE II economic comparison to dispersants and mechanical Clean ups

    INTRODUCTION   Oil Spill Eater II is the name of a non-toxic product which provides the means for moving oil spill response out of its 19th Century methodology into the realm of advanced technological 21st Century breakthroughs for addressing and remediating 100% of any spill in any environment. In comparison, current response methods employed by three major oil companies - BP, Exxon ...

  • Characterize thin films using FTIR polarization modulation | Spectroscopy Solutions

    Thin films of organic and oxide materials are the building blocks of an extensive variety of nanomaterials and devices in optoelectronics, sensors and battery technology. FTIR allows the collection of spectrums of films around 2 nanometres thick and Specac's Infrared Wire Grid ...


    By Specac Limited

  • Warmest Decade on Record Brings Record Temperatures and Weather Extremes

    In recent years weather events have whiplashed between the extremes of heat and cold, flooding and drought. Carbon dioxide and other greenhouse gases—largely from the burning of coal, oil, and natural gas—have loaded up in the atmosphere, heating the planet and pushing humanity onto a climatic seesaw of weather irregularities. High-temperature records in many places are already being ...


    By Earth Policy Institute

  • What is equity in the context of climate negotiations?

    If you asked five different people what they think “equity” means, you’d probably get five different answers. Their personal experiences and opinions would be overlaid on their cultural perspectives. A philosopher might bring up Aristotle’s teachings on justice; an economist would likely talk about maximizing utility and efficiency. A Buddhist and a Muslim might frame ...

  • Oil Spill Eater, Solution Oil Spillage in Niger Delta

    Oil Spill Eater II is the name of a non-toxic product which provides the means for moving oil spill response out of its 19th Century methodology into the realm of advanced technological 21st Century breakthroughs for addressing and remediating 100% of any spill in any environment.  In comparison, current response methods employed by three major oil companies - BP, Exxon and Shell - are ...

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