1. Fifty years of EPA science for air quality management and control

   • Charles Andrew Miller

   OriginalPaper Open access 09 April 2021 Pages: 1017 - 1028

   

2. National Hazards Vulnerability and the Remediation, Restoration and Revitalization of Contaminated Sites—1. Superfund

   • Kevin Summers
   • Andrea Lamper
   • Kyle Buck

   OriginalPaper 25 March 2021 Pages: 1029 - 1042

   

3. International Response under the Antarctic Treaty System to the Establishment of A Non-native Fly in Antarctica

   • Mónica Remedios-De León
   • Kevin Andrew Hughes
   • Peter Convey

   OriginalPaper Open access 15 April 2021 Pages: 1043 - 1059

   

4. Local Decision-makers’ Perspectives on Roadside Revegetation and Management in Iowa, USA

   • Kristine Nemec
   • Andrew Stephenson
   • Mary Losch

   OriginalPaper 18 March 2021 Pages: 1060 - 1074

   

5. Effect of Elevation on the Density and Species Composition of Encroacher Woody Plants in Borana Rangeland, Southern Ethiopia

   • Zinabu Bora
   • Ayana Angassa
   • Yuan You

   OriginalPaper 17 March 2021 Pages: 1075 - 1087

   

6. Factors Influencing Family Forest Owners’ Interest in Community-led Collective Invasive Plant Management

   • Mysha Clarke
   • Zhao Ma
   • Kristin Floress

   OriginalPaper 05 April 2021 Pages: 1088 - 1099

7. Agricultural Land Abandonment in the Hill Agro-ecological Region of Nepal: Analysis of Extent, Drivers and Impact of Change

   • Yuba Raj Subedi
   • Paul Kristiansen
   • Roshan Babu Ojha

   OriginalPaper 17 March 2021 Pages: 1100 - 1118

   

8. Which Socio-economic Conditions Drive the Selection of Agroforestry at the Forest Frontier?

   • Elizabeth Gosling
   • Thomas Knoke
   • Carola Paul

   OriginalPaper Open access 12 February 2021 Pages: 1119 - 1136

   

9. Growth Response of Cuttings to Drought and Intermittent Flooding for Three Salix Species and Implications for Riverbank Soil Bioengineering

   • Naren Keita
   • Bérenger Bourgeois
   • Monique Poulin

   OriginalPaper 12 April 2021 Pages: 1137 - 1144

   

10. Integrated Physiological Biomarkers Responses in Wild Fish Exposed to the Anthropogenic Gradient in the Biobío River, South-Central Chile

    • Mauricio Quiroz-Jara
    • Silvia Casini
    • Ricardo Barra

    OriginalPaper 03 April 2021 Pages: 1145 - 1157

    

11. Response of grizzly bears (Ursus arctos) to pipelines in Alberta

    • Anja Sorensen
    • Catherine Denny
    • Gordon Stenhouse

    OriginalPaper 18 March 2021 Pages: 1158 - 1170

    

12. Linking Altered Flow Regimes to Biological Condition: an Example Using Benthic Macroinvertebrates in Small Streams of the Chesapeake Bay Watershed

    • Kelly Oliver Maloney
    • Daren Milo Carlisle
    • John André Young

    OriginalPaper Open access 12 March 2021 Pages: 1171 - 1185