Lawrence Berkeley National Lab / Galen Barbose, Naïm Darghouth, and Ryan Wiser http://eetd.lbl.gov/ea/emp/reports/lbnl-4121e.pdf [From Introduction] The market for PV in the United States is driven by national, state, and local government incentives, including up-front cash rebates, production-based incentives, requirements that electricity suppliers purchase a certain amount of solar energy, and federal and state tax benefits. … Continue reading »
Posted on January 5, 2011 …
Nitrous Oxide Emission from Denitrification in Stream and River Networks
PNAS / Jake J. Beaulieu et al http://www.pnas.org/content/108/1/214.full.pdf+html [Abstract] Nitrous oxide (N2O) is a potent greenhouse gas that contributes to climate change and stratospheric ozone destruction. Anthropogenic nitrogen (N) loading to river networks is a potentially important source of N2O via microbial denitrification that converts N to N2O and dinitrogen (N2). The fraction of denitrified … Continue reading »
Socioeconomic Legacy Yields an Invasion Debt
PNAS / Franz Essl et al http://www.pnas.org/content/108/1/203.full.pdf+html [Abstract] Globalization and economic growth are widely recognized as important drivers of biological invasions. Consequently, there is an increasing need for governments to address the role of international trade in their strategies to prevent species introductions. However, many of the most problematic alien species are not recent arrivals … Continue reading »
An Evaluation of Public Aids Towards Renewable Energy Sources in Spain
Universidad Carlos III de Madrid Working Paper 10-37 / Jose Luis Ferreira and Alvaro Escribano http://e-archivo.uc3m.es/bitstream/10016/9796/1/we1037.pdf [Abstract] Public aids towards renewable energy sources in Spain have had the consequence of a great increase in their use. This is particularly true for the case of wind generation. For the year 2007, we show that the savings … Continue reading »
