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Deepwater Horizon crude oil impacts the developing hearts of large predatory pelagic fish

The 2010 Deepwater Horizon (MC252) disaster in the northern Gulf of Mexico released more than 4 million barrels of crude oil. Oil rose from the ocean floor to the surface where many large pelagic fish spawn. Here we describe the impacts of field-collected oil samples on the rapidly developing embryos of warm-water predators, including bluefin [...]

Geographic, Technologic, And Economic Analysis of Using Reclaimed Water for Thermoelectric Power Plant Cooling- TERA

Use of reclaimed water—municipal wastewater treatment plant effluent—in nonpotable applications can be a sustainable and efficient water management strategy. One such nonpotable application is at thermoelectric power plants since these facilities require cooling, often using large volumes of freshwater. To evaluate the geographic, technologic, and economic feasibility of using reclaimed water to cool thermoelectric power [...]

Feeding Nine Billion People Sustainably: Conserving Land and Water through Shifting Diets and Changes in Technologies- TERA

This study applies an inter-regional input-output model of the world economy, the World Trade Model, for analysis of alternative scenarios about satisfying future food requirements by midcentury. The scenario analysis indicates that relying only on more extensive use of arable land and fresh water would require clearing forests and exacerbating regional water scarcities. However, a [...]

Effects of Carbon Dioxide on the Mobilization of Metals from Aquifers

The continuous CO2 dissolution and water acidification causes significant mobilization and dissolution of several metals (Mn, Ni, Cu, Zn, Co), moderate mobilization of Cr, acceleration of Cd dissolution, whereas Fe remains strongly bonded on the sand grains as goethite. The parameters estimated from lab-scale column tests might be helpful for interpreting field-scale CO2 leakage scenarios [...]

Evaluation of Cementitious Materials as Green Facades- TERA

Ordinary Portland cement (OPC), the most used binder in construction, presents some disadvantages in terms of pollution (CO2 emissions) and visual impact. For this reason, green roofs and façades have gain considerable attention in the last decade as a way to integrate nature in cities. These systems, however, suffer from high initial and maintenance costs. An [...]

Methods for Pretreatment of Lignocellulosic Biomass for Efficient Hydrolysis and Biofuel Production- TERA

Biofuels produced from various lignocellulosic materials, such as wood, agricultural, or forest residues, have the potential to be a valuable substitute for, or complement to, gasoline. Many physicochemical structural and compositional factors hinder the hydrolysis of cellulose present in biomass to sugars and other organic compounds that can later be converted to fuels. The goal [...]

Contrasting Ancient Diversity with Recent Homogenization Due to the Austronesian Expansion- TERA

Archaeology, linguistics, and existing genetic studies indicate that Oceania was settled by two major waves of migration. The first migration took place approximately 40 thousand years ago and these migrants, Papuans, colonized much of Near Oceania. Approximately 3.5 thousand years ago, a second expansion of Austronesian-speakers arrived in Near Oceania and the descendants of these [...]

Can Cloning Revive Spain’s Extinct Mountain Goat?

The Pyrenean ibex, an impressive mountain goat that lived in the central Pyrenees in Spain, went extinct in 2000. But a group of scientists is trying to revive the species by cloning cells from its last living member. A previous attempt in 2003 failed, but renewed interest in “de-extinction” in general and a private donation [...]

Systems ecology and environmentalism: Are we getting the science right?

Problems of environmentalism—environmental protection, conservation, and preservation—are now widely appreciated as important to human enterprise and destiny. Called to attention by advances in descriptive empirical ecology, the new problems are too complex for this same ecology to solve without further expansion of basic knowledge. Environmentalism needs an ecological science of complex systems, but its development [...]

Quick start and challenges for UN’s tech transfer body

The “lightning speed” with which a UN-led initiative to transfer technologies for tackling climate change to developing nations has been set up is impressive, but remaining challenges could prevent its success, a member of its advisory board says.Difficulties in encouraging applications for technological assistance and concern about finding enough partners to build a viable international [...]