scholarly journals Atrazine residues in flooded and nonflooded soil and effects on soybean

2020 ◽  
pp. 1-6
Author(s):  
Thomas C. Mueller ◽  
David R. Kincer ◽  
Lawrence E. Steckel
Keyword(s):  
Climate Change ◽  
Global Climate Change ◽  
Global Climate ◽  
Residual Activity ◽  
The United States ◽  
Soybean Yield ◽  
River Flooding ◽  
The Past ◽  
Course Of Action ◽  
Atrazine Concentration

Abstract Atrazine applied at planting is commonly used for weed control in corn. With global climate change causing an increase in river flooding in the United States over the past decade, producers need information to determine the best course of action in flooded fields treated with atrazine into which they wish to immediately plant soybean. Studies were designed to understand the effect of flooding on atrazine residual activity including atrazine concentration, soybean injury, and soybean yield. In 2012, soybean yield in flooded treatments was reduced by prior atrazine application. In 2014, soybean injury was <10% in all plots, and nonflooded, atrazine-treated soils had yields equal to the nontreated. Findings from this research indicated that it is possible for producers to consider replanting soybean after atrazine application, with appropriate changes to product labeling.

scholarly journals Broadcast Meteorologists’ Views on Climate Change: A State-of-the-Community Review

2020 ◽  
Vol 12 (2) ◽  
pp. 249-262 ◽  
Author(s):  
David R. Perkins ◽  
Kristin Timm ◽  
Teresa Myers ◽  
Edward Maibach
Keyword(s):  
Climate Change ◽  
Global Climate Change ◽  
Global Climate ◽  
The United States ◽  
Comprehensive Analysis ◽  
The Public ◽  
The Past ◽  
Local Impacts ◽  
Using Data ◽  
Impacts Of Climate Change

AbstractBroadcast meteorologists—highly skilled professionals who work at the intersection between climate scientists and the public—have considerable opportunity to educate their viewers about the local impacts of global climate change. Prior research has shown that, within the broadcast meteorology community, views of climate change have evolved rapidly over the past decade. Here, using data from three census surveys of U.S. broadcast meteorologists conducted annually between 2015 and 2017, is a comprehensive analysis of broadcast meteorologists’ views about climate change. Specifically, this research describes weathercasters’ beliefs about climate change and certainty in those beliefs, perceived causes of climate change, perceived scientific consensus and interest in learning more about climate change, belief that climate change is occurring (and the certainty of that belief), belief that climate change is human caused, perceptions of any local impacts of climate change, and perceptions of the solvability of climate change. Today’s weathercaster community appears to be sharing the same viewpoints and outlooks as most climate scientists—in particular, that climate change is already affecting the United States and that present-day trends are largely a result of human activity.

scholarly journals Sensitivity of atmospheric aerosol scavenging to precipitation intensity and frequency in the context of global climate change

2017 ◽  
Author(s):  
Pei Hou ◽  
Shiliang Wu ◽  
Jessica L. McCarty
Keyword(s):  
Climate Change ◽  
Global Climate Change ◽  
Atmospheric Aerosols ◽  
Atmospheric Aerosol ◽  
Model Simulation ◽  
Global Climate ◽  
Regional Scale ◽  
Precipitation Intensity ◽  
The Past ◽  
Precipitation Changes

Abstract. Wet deposition driven by precipitation is an important sink for atmospheric aerosols and soluble gases. We investigate the sensitivity of atmospheric aerosol lifetimes to precipitation intensity and frequency in the context of global climate change. Our study, based on the GEOS-Chem model simulation, shows that the removal efficiency and hence the atmospheric lifetime of aerosols have significantly higher sensitivities to precipitation frequencies than to precipitation intensities, indicating that the same amount of precipitation may lead to different removal efficiencies of atmospheric aerosols. Combining the long-term trends of precipitation patterns for various regions with the sensitivities of atmospheric aerosols lifetimes to various precipitation characteristics allows us to examine the potential impacts of precipitation changes on atmospheric aerosols. Analyses based on an observational dataset show that precipitation frequency in some regions have decreased in the past 14 years, which might increase the atmospheric aerosol lifetimes in those regions. Similar analyses based on multiple reanalysis meteorological datasets indicate that the precipitation changes over the past 30 years can lead to perturbations in the atmospheric aerosol lifetimes by 10 % or higher at the regional scale.

China-US deal sets stage for new climate change regime

2015 ◽  
Keyword(s):  
Climate Change ◽  
United States ◽  
Developing Countries ◽  
Global Climate Change ◽  
Global Climate ◽  
The United States ◽  
Content Type ◽  
Bilateral Agreement ◽  
The Eu ◽  
Game Changer

Significance The United States has already committed, in an unprecedented deal with China in November 2014, to reducing its emissions to 26-28% below 2005 levels by 2025 (an improvement on its previous 17% goal). China in return pledged that its emissions would peak around 2030. This agreement is a game-changer for combating global climate change, since the two countries are the world's largest sources of carbon emissions, together accounting for 40% of the total, and were not covered under the now-expired Kyoto Protocol. Impacts Washington is poised to reclaim its place, lost after Kyoto, as a leader in global efforts against climate change. US-China climate cooperation initiatives could serve as templates for other developing countries. There are new opportunities for trilateral cooperation involving the EU. Fears that the bilateral agreement makes the UNFCCC obsolete are unwarranted, but it could preclude more ambitious efforts.

scholarly journals Bio-modulating wine acidity: The role of non-Saccharomyces yeasts

2019 ◽  
Author(s):  
Alice Vilela
Keyword(s):  
Climate Change ◽  
Global Climate Change ◽  
Global Climate ◽  
Good Balance ◽  
The Past ◽  
Spoilage Yeasts ◽  
Wine Composition ◽  
Saccharomyces Yeasts

In recent years, wine consumers have been looking for fruitier wines, with less ethanol, but presenting a good balance in terms of mouthfeel. However, due to the effects of global climate change, wines can be more alcoholic and flatter in terms of acidity. If in the past, non-Saccharomyces yeasts were often considered as spoilage yeasts, now they are used to modulate wine composition, namely in terms of aroma and acidity. In this article, the ability of some non-Saccharomyces yeasts to modulate wine acidity is reviewed.

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