climate change Articles
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The Power of Reclaimed Water
Power generation need not be another source of strain on diminishing freshwater resources. Well-established water reclamation technologies are enabling producers to conserve resources and money. Meeting the needs of a planetary population expected to surpass eight billion people by 2025 is requiring more output from fewer resources. In the case of dwindling supplies of freshwater, the strain ...
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Impact of CO2 Emission Trading Schemes on Residual Waste Management
ABSTRACT The EU-Emission trading scheme (ETS) in its current design hardly affects residual waste management directly: methane from landfill-sites is not included although it is one of the “Green-House-Gases” (GHG) of the Kyoto Protocol, CO2-emissions from waste incineration plants are generally exempted from the regulation of the directive and emissions from combustion of landfill-site gas can ...
By ORBIT e.V.
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Estimating changes in river faecal coliform loading using nonparametric multiplicative regression
Faecal coliform (FC) concentration was monitored weekly in the Tangipahoa River over an eight year period. Available USGS discharge and precipitation data were used to construct a nonparametric multiplicative regression (NPMR) model for both forecasting and backcasting of FC density. NPMR backcasting and forecasting of FC allowed for estimation of concentration for any flow regime. During this ...
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Geomembrane Liners for Potable Water
Population growth, increasing meat consumption, and economic activity are putting a heavy strain on the world’s water resources. According to the latest data from the World Resources Institute, a Washington-based research institute, people in 400 regions around the world are living in “extreme water scarcity”. There are fears that water scarcity could displace millions, one of ...
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H2S Monitoring
H2S is formed whenever elemental sulfur or sulfur-containing compounds come into contact with organic materials at high temperatures. Continuous or high-level exposure of the H2S can quickly deaden a person’s sense of smell, making the odour of H2S an unreliable indicator of its presence. Hence, other means such as hydrogen sulfide monitoring is a viable solution to provide adequate warning ...
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What Is Water Scarcity?
Whether it’s from drought or lack of access, more than a billion people around the world don’t have enough clean water Acute drought conditions and dwindling natural water resources are focusing more attention on what continues to be a worldwide problem: a lack of access to fresh, potable water. Water scarcity can be defined as a lack of sufficient water, or not having access to ...
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Sustainable food production: Facts and Figures
Farming must feed more people more sustainably. Zareen Bharucha looks at scientific approaches past and present. Advances in agricultural science and technology (S&T) have contributed to remarkable increases in food production since the mid-twentieth century. Global agriculture has grown 2.5–3 times over the last 50 years. [1] This has let food production keep pace with human ...
By SciDev.Net
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Ozone for cooling tower systems – an update and lessons learned at the kennedy space center
KEYWORDS: Ozone, Cooling Water, Stand-Alone Treatment, and Large Capacity Cooling Tower SUMMARY: The operational experience and performance of the successful use of ozone as a stand-alone cooling water treatment method are discussed. Several guidelines for design parameters and operational controls are presented. From a wide field of application experience, the author offers several ...
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Computational study of the effects of induced land use changes on meteorological patterns during hot weather events in an urban environment
The heavy urbanisation of great cities has caused immense concern to societies due to air quality degradation and adverse changes in local climates such as abnormally high temperatures. Due to the growing demand for renewable energy resources and electrical power generation, the installation of photovoltaic (PV) panels on building roofs and other available open spaces has advanced in the recent ...
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An essential guide to water treatment solutions & its steps
The scarcity of water is one of the biggest issues faced by the current generation. Due to the changes in climatic pattern, rising number of industrial employments and other commercial residues, the remaining water sources have kept on being polluted, and hence, the level of drinkable and safe water is dropping at an alarming rate. Currently, while the level of wastewater is rising, on the ...
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Put energy into emission control projects
Many companies feel pressured to spend the least amount possible to meet environmental regulations, primarily because compliance isn’t a profit generating endeavor. What some environmental and compliance managers fail to realize is that emission control equipment can quickly become a profit decreasing endeavor with this penny wise-pound foolish approach. With mandatory greenhouse gas (GHG) ...
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Testing the upper limits - Case Study
PROJECT BACKGROUND For two days, hydrogeologist Lee Florea and his fellow explorers have been slowly plodding step by step to the top of Washington’s Mount Rainier. Laden with up to 80 pounds of supplies and scientific gear, they watch enviously as recreational climbers cruise past them carrying half that on their path to the summit. But there’s a big difference between the two ...
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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 ...
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Water Sustainability
I7.1 | Water Optimization – 30% Groundwater Use Reduction Tabatha Pellerin, Senior Program Manager, AECOM AECOM assisted the Entergy Lewis Creek gas/coal fired electric power plant with water conservation efforts prompted by a goal of 30% groundwater (GW) use reduction by 2016 mandated by the local GW authority. To complete this work, personnel interviews were conducted to ...
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Perspectives from the field: Ecosystem-based approaches to disaster risk reduction
UNEP - Starting this week at the Third World Conference on Disaster Risk Reduction, the international community is expected to approve the next ten year plan to strengthen the resilience of countries and communities against disasters. The task at hand is a critically important one, particularly as the number of people affected by disasters has already doubled over the past decade and is expected ...
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New Jersey Uses GIS, EQuIS to Collect Site Remediation Data
Using GIS To Manage Remediation Data GIS holds great potential as a tool for managing environmental site remediation data. While using GIS to locate Superfund sites is commonplace, GIS has played only a minor role in the review and analysis of chemical data gathered during an investigation or monitoring activity. There are a number of reasons why GIS has not become commonplace in the evaluation ...
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2020 Recycling Challenges
The focus on environmental issues and recycling reached new highs in 2019. Public awareness of the global climatic challenges of waste management changed the political agenda. The UK’s 2019 general election included serious inter-party debate about the environment for the first time. The European Union stepped forward and set new recycling targets. However, despite the rhetoric, changes ...
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Gill Instruments case study featured in AWE International
AWE International magazine, which is focused on the environmental analysis industry, recently featured Gill Instruments in a case study about environmental monitoring with solid-state meteorological instruments. The case study includes information about all of the products within the Gill Instruments range, with information about their advantages within the environmental analysis field. We have ...
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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 ...
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Planetary Boundary Layer: Why Is It Important?
The famous statistician George Box said “All models are wrong, but some are useful”—for calculating air quality indices and emissions estimates this is certainly true. One way to increase the utility of models is to use up-to-the-minute, local Planetary Boundary Layer (PBL) measurements as an input when generating top-down emissions estimates. Understanding the local PBL should ...
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