Environmental Geochemistry Issues Semi-Monthly

Trump EPA OKs 'Emergency' to Dump Bee-killing Pesticide on 16 Million Acres : Center for Biological Diversity : The Environmental Protection Agency reported this week that in 2018 it issued so-called 'emergency' approvals to spray sulfoxaflor — an insecticide the agency considers 'very highly toxic' to bees — on more than 16 million acres of crops known to attract bees. (Press Release,  Center for Biological Diversity ; February 15, 2019) N. B.:   For more information on the  Chiral Neonicotinoid   Sulfoxaflor , please refer to the link of my former August 16, 2018 blog post provided below: Sulfoxaflor Exposure and its Detrimental Effects on Bees - Studies                             Megachile rotundata Bee ( Agricultural Research Service , 19 March 2008) By the way... List of Foods We Will Lose if We Don't Save the Bees (Christina SARICH,  HoneyLove.org ; August 15, 2...

Revised Definition of "Waters of the United States" (U. S. Federal Register, Army Corp. of Engineers and EPA ; February 14, 2019) https://www.federalregister.gov/documents/2019/02/14/2019-00791/revised-definition-of-waters-of-the-united-states N. B.:   The Public Comment Period for  Docket ID No. EPA-HQ-OW-2018-0149 is from February 14, 2019 to April 15, 2019 Documentation : New!    Evolution of the Meaning of "Waters of the United States" in the Clean Water Act ( Congressional Research Service Report R44585 ; Updated March 5, 2019) https://fas.org/sgp/crs/misc/R44585.pdf Also... For more information on the Revised Definition of WOTUS , including up-coming Public Hearings scheduled in Kansas City, Kansas on February 27 and 28, 2019 ; please refer to the following link of my former December 18, 2018 blog post provided below: EPA, Army Corp of Engineers Revised "Waters of the United States" (WOTUS) Definition

( Image retrieved from "Just Another Day on Aerosol Earth"   ( Earth Observatory - NASA ) Research Publication: Preliminary evaluation of influence of aerosols on the simulation of brightness temperature in the NASA's Goddard Earth Observing Atmospheric Data Assimilation System (KIM  et al. , 2018) https://gmao.gsfc.nasa.gov/pubs/docs/Kim1018.pdf Videos: ScienceCasts:  Monitoring Air Quality (ScienceAtNASA; June 27, 2016) NASA aerosol simulation 2017 ( TheBadAstronomer ; November 27, 2017) Websites: Air Quality ( Earth Data -  NASA ) https://earthdata.nasa.gov/earth-observation-data/near-real-time/hazards-and-disasters/air-quality Air Quality Real Time Map ( Berkeley Earth ) http://berkeleyearth.org/air-quality-real-time-map/ What is the current state of air quality around the world? ( State of Global Air 2018 ) https://www.stateofglobalair.org/air/current Aerosol Optical Depth (March 2000 - November 2018) ( Ea...

Featured Documentation: Reinitiation of the  Coordinated Long-Term Operation of the Central Valley Project and State Water Project - Final Biological Assessment (Central Valley Project, CA; Mid Pacific Region - U. S. Department of the Interior, Bureau of Land Management ; January 2019) https://www.usbr.gov/mp/bdo/docs/ba-final-biological-assessment.pdf N. B.:   Appendices A - H for the Final Biological Assessment document  are available for download at the aforementioned BLM Mid-Pacific Region website link provided below. Also... Central Valley Project Operations:  Background and Legislation [STERN and SHEIKH, Congressional Research Service; April 26, 2017] https://fas.org/sgp/crs/misc/R44456.pdf Map:   (Map retrieved from the Endangered Species Recovery Program website, CSU Stanislaus ) Website: Updates to the Coordinated Long-Term Operation of the CVP and the SWP and Related Facilities  [ Mid-Pacific Region...