diff --git a/CHANGELOG.md b/CHANGELOG.md
index f043ba224..852c8f116 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ### changed
 - **21_trade** refactor equations for enhanced readablility and improve documentation
+- **script** rewrite of merge_report.R based on rds files and rbind, which allows for more flexibility when merging reports. Avoid inconsistent use of "GLO" instead of "World" in report.rds files.
 
 ### added
 - **scripts** added output report `EU_report.R` that uses `EU_report.Rmd`
diff --git a/scripts/output/merge_report.R b/scripts/output/merge_report.R
index aa4856e78..18dbe5b58 100644
--- a/scripts/output/merge_report.R
+++ b/scripts/output/merge_report.R
@@ -30,27 +30,24 @@ if(!exists("source_include")) {
 cat("\nStarting output generation\n")
 
 missing <- NULL
+out <- NULL
 
-if(file.exists("output/report_all.mif")) file.rename("output/report_all.mif","output/report_all.bak")
+if(file.exists("output/report_all.rds")) file.rename("output/report_all.rds","output/report_all_bak.rds")
+if(file.exists("output/report_all.mif")) file.rename("output/report_all.mif","output/report_all_bak.mif")
 
 for (i in 1:length(outputdir)) {
   print(paste("Processing",outputdir[i]))
-  #gdx file
-  rep<-file.path(outputdir[i],"report.mif")
+  rep<-file.path(outputdir[i],"report.rds")
   if(file.exists(rep)) {
-    #get scenario name
-    cfg <- gms::loadConfig(file.path(outputdir[i], "config.yml"))
-    scen <- cfg$title
-    #read-in reporting file
-    a <- read.report(rep,as.list = FALSE)
-    getNames(a,dim=1) <- scen
-    #add to reporting mif file
-    write.report(a,file="output/report_all.mif",append=TRUE,ndigit = 4,skipempty = FALSE)
+    a <- readRDS(rep)
+    out <- rbind(out,a)
   } else missing <- c(missing,outputdir[i])
 }
+
+saveRDS(out,file="output/report_all.rds")
+write.mif(out,"output/report_all.mif")
+
 if (!is.null(missing)) {
   cat("\nList of folders with missing report.mif\n")
   print(missing)
 }
-
-if(file.exists("output/report_all.mif")) saveRDS(read.quitte("output/report_all.mif"),file = "output/report_all.rds")
diff --git a/scripts/output/rds_report.R b/scripts/output/rds_report.R
index e02197b0b..6bec3dbaa 100644
--- a/scripts/output/rds_report.R
+++ b/scripts/output/rds_report.R
@@ -48,8 +48,13 @@ for (mapping in c("AR6", "NAVIGATE", "SHAPE", "AR6_MAgPIE")) {
 }
 
 write.report(report, file = mif)
+
 q <- as.quitte(report)
+# as.quitte converts "World" into "GLO". But we want to keep "World" and therefore undo these changes
 q <- droplevels(q)
+levels(q$region)[levels(q$region) == "GLO"] <- "World"
+q$region <- factor(q$region,levels = sort(levels(q$region)))
+
 if(all(is.na(q$value))) stop("No values in reporting!")
 
 saveRDS(q, file = rds, version = 2)
diff --git a/scripts/output/rds_report_iso.R b/scripts/output/rds_report_iso.R
index c21958831..52cf2aa57 100644
--- a/scripts/output/rds_report_iso.R
+++ b/scripts/output/rds_report_iso.R
@@ -31,7 +31,13 @@ rds_iso <- paste0(outputdir, "/report_iso.rds")
 ###############################################################################
 
 report <- getReportIso(gdx, scenario = cfg$title, dir = outputdir)
+
 q <- as.quitte(report)
+# as.quitte converts "World" into "GLO". But we want to keep "World" and therefore undo these changes
+q <- droplevels(q)
+levels(q$region)[levels(q$region) == "GLO"] <- "World"
+q$region <- factor(q$region,levels = sort(levels(q$region)))
+
 if (all(is.na(q$value))) {
   stop("No values in reporting!")
 }