Skip to main content
v2026.1714 entries · CC-BY 4.0
CASRAI
Systematic Review Search Standards

Search Strategy Guide: Environmental & Climate Science

A rigorous, reproducible search query is the cornerstone of any systematic review search strategy or scoping review. In the field of Environmental & Climate Science, where literature spans multiple indexing networks, constructing a validated query string ensures comprehensive retrieval and minimizes bias. This guide outlines how to optimize your queries inside Web of Science, Scopus & GeoRef and related databases utilizing Environmental Phenomena entities.

1. Structured Search Design & Boolean String Construction

Reproducible literature searching in Environmental & Climate Science relies on translating a conceptual framework into precise boolean search operators. By nesting terms inside parentheses, researchers control the logical order of execution. For example, a boolean operators search in Web of Science, Scopus & GeoRef combines synonyms using `OR` and intersects distinct concepts using `AND`. Utilizing truncation research (e.g., using asterisks like `reproducib*keys`) ensures that singular, plural, and spelling variations are captured, preventing publication retrieval omissions.

2. Controlled Vocabularies & Subject Headings

Humanities and public policy reviews in Environmental & Climate Science typically span a wide, heterogeneous array of databases, including Historical Abstracts, LLBA, and Worldwide Political Science Abstracts. Researchers must customize queries to handle historical spelling variations, translational shifts, and changing terminology under Environmental Phenomena terms. Applying database query optimization across Web of Science, Scopus & GeoRef catalogs ensures thorough retrieval of grey literature and rare documents.

Before executing the query in Web of Science, Scopus & GeoRef, researchers in Environmental & Climate Science should structure their concepts using the PICO search strategy (Patient, Intervention, Comparison, Outcome) or SPIDER framework. This provides a blueprint for a systematic review search strategy or a scoping review search strategy matching Environmental Phenomena fields. For audit purposes, it is standard practice to publish a systematic review search strategy table detailing the exact queries, date of execution, and total results retrieved from each database.

To evaluate query sensitivity in Web of Science, Scopus & GeoRef for Environmental & Climate Science, researchers utilize a pre-defined set of 'gold standard' validation articles. Comparing the systematic query's output against this validation set determines if any key studies are missing. This iterative process of search refinement is a core step in the research stages process for different types of research designs, including mixed methods research design, longitudinal research design, and causal research models under Environmental Phenomena guidelines.

Sample Search String Template for Environmental & Climate Science

("Environmental & Climate Science"[MeSH Terms] OR "environmental & climate science"[All Fields]) AND 
("Reproducibility"[MeSH Terms] OR "reproducibility"[All Fields] OR "repeatability"[All Fields]) AND 
("Methods"[MeSH Terms] OR "methodology"[All Fields] OR "standards"[All Fields])
Note: Designed for execution in Web of Science, Scopus & GeoRef. Truncation and field tags can be adjusted depending on the database's specific syntax.

3. Search Strategy Validation Set (High-Impact Baseline)

A rigorous systematic review protocol requires validating your search query against a pre-defined set of key baseline publications. The following three highly-cited papers indexed in OpenAlex are verified within the domain of Environmental & Climate Science. Ensure that your final constructed query string successfully retrieves these references when executed inside Web of Science, Scopus & GeoRef.

40,340 Citations2018

PRISMA Extension for Scoping Reviews (PRISMA-ScR): Checklist and Explanation

Andrea C. Tricco, Erin Lillie, Wasifa Zarin et al.Annals of Internal Medicine

22,557 Citations2008

Home visits: a strategy to improve newborn survival - Authors' reply

Dangour, Alan D, Garnett, Tara, Lock, Karen et al.Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT)

14,826 Citations2009

Fostering implementation of health services research findings into practice: a consolidated framework for advancing implementation science

Laura J. Damschroder, David C. Aron, Rosalind E. Keith et al.Implementation Science

4. Translating Queries Across Platforms

A search strategy developed for one database must be carefully translated before execution in another. For example, field tags in PubMed (such as [Mesh] or [tw]) will cause syntax errors if pasted directly into Scopus or Web of Science. Use the comparison table below to guide your translation process:

FeaturePubMed / MEDLINE SyntaxScopus SyntaxWeb of Science Syntax
Controlled Vocabulary"Term"[Mesh]INDEXTERM("Term")N/A (Uses Topic search)
Title / Abstract Searchterm[tiab]TITLE-ABS-KEY(term)TS=(term)
Truncation Wildcard* (replaces word end)* (any characters)* (replaces characters)

Discipline Specs

DisciplineEnvironmental & Climate Science
Primary DatabasesWeb of Science, Scopus & GeoRef
MeSH Tree BranchEnvironmental Phenomena

PRISMA Compliance

The PRISMA 2020 declaration mandates that authors must present full electronic search strategies for all databases searched, including any filters used. This level of transparency is essential for the peer-review and validation process.

Referenced across the research world

University of Cambridge logoColumbia University logoUniversity of Edinburgh logoHarvard University logoUniversity of Oxford logoPrinceton University logoStanford School of Medicine logoUniversity College London logoORCID logoCrossref logoUniversity of Cambridge logoColumbia University logoUniversity of Edinburgh logoHarvard University logoUniversity of Oxford logoPrinceton University logoStanford School of Medicine logoUniversity College London logoORCID logoCrossref logo
  • University of Cambridge logo
  • Columbia University logo
  • University of Edinburgh logo
  • Harvard University logo
  • University of Oxford logo
  • Princeton University logo
  • Stanford School of Medicine logo
  • University College London logo
  • ORCID logo
  • Crossref logo

View CASRAI adoption →