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Climate change decouples oceanic primary and export productivity and organic carbon burial- TERA

Understanding responses of oceanic primary productivity, carbon export, and burial to climate change is essential for model-based projection of biological feedbacks in a high-CO2 world. Here we compare estimates of productivity based on the composition of fossil diatom floras with organic carbon burial off Oregon in the Northeast Pacific across a large climatic transition at [...]

Should we “reef” obsolete oil platforms?- TERA

Claisse et al. (1) show that not only do oil platforms produce fish, but they do so at a rate far greater than our most productive marine habitats, such as coral reefs and mangroves. Because this information may be used to justify increased “reefing” of obsolete oil infrastructure worldwide, we offer some caveats. doi: http://dx.doi.org/10.1073/pnas.1422274112

Air Force Turns a Keen Eye on Space Junk

An estimated 500,000 pieces of space junk—old satellites, rocket parts, debris from collisions—swarm in orbit around Earth. Much of it is potentially deadly: NASA officials say anything larger than 1 centimeter in diameter poses a threat to the International Space Station. But current tracking systems can generally only watch objects 10 cm or larger, and [...]

Evolutionary tipping points in the capacity to adapt to environmental change- TERA

Environmental variation is becoming more frequent and unpredictable as a consequence of climate change, yet we currently lack the tools to evaluate the extent to which organisms may adapt to this phenomenon. Here we develop a model that explores these issues and use it to study how changes in the timescale and predictability of environmental [...]

Chelation technology: a promising green approach for resource management and waste minimization- TERA

Chelation technology, a modern research trend, has shown its potential to develop sustainable technology for metal extraction from various metal-contaminated sites. However, the interaction mechanism of ligands with metals and the ecotoxicological risk associated with the increased bioavailability of heavy metals due to the formation of metal–chelant complexes is still not sufficiently explicated in the [...]

Recovery and Separation of Rare Earth Elements Using Salmon Milt- TERA

As strange as it sounds, fish sperm could be a key ingredient for extracting and recycling rare earth elements (REEs) from ore and materials such as magnets and electronic waste. The Japanese team developed a process that uses salmon sperm, or milt – a delicacy in Japan – to recover and separate REEs in aqueous solution, which [...]

Semivolatile Organic Compounds in Homes: Strategies for Efficient and Systematic Exposure Measurement Based on Empirical and Theoretical Factors- TERA

Residential exposure can dominate total exposure for commercial chemicals of health concern; however, despite the importance of consumer exposures, methods for estimating household exposures remain limited. We collected house dust and indoor air samples in 49 California homes and analyzed for 76 semivolatile organic compounds (SVOCs)—phthalates, polybrominated diphenyl ethers (PBDEs), polychlorinated biphenyls (PCBs), polycyclic aromatic [...]

Building a Robust 21st Century Chemical Testing Program at the U.S. Environmental Protection Agency: Recommendations for Strengthening Scientific Engagement

Discussion: Environmental Defense Fund works across disciplines and with diverse groups to improve the science underlying environmental health decisions. We propose that the U.S. EPA can strengthen the scientific foundation of its new chemical testing efforts and increase support for them in the scientific research community by a) expanding and diversifying scientific input into the [...]

Pollution patroling devices go personal- TERA

The DustDuino and other pollution sensors, some of which can be built for as little as US$50, and instructions for which are available online, are part of the next wave in the environmental movement (see ‘Sensors for the people’). Across the globe, journalists, advocacy groups, hackers and others are starting to use low-cost monitoring devices [...]

Chitosan as a Sustainable Organocatalyst: A Concise Overview- TERA

Increased demand for more sustainable materials and chemical processes has tremendously advanced the use of polysaccharides, which are natural biopolymers, in domains such as adsorption, catalysis, and as an alternative chemical feedstock. Among these biopolymers, the use of chitosan, which is obtained by deacetylation of natural chitin, is on the increase due to the presence [...]