diff --git a/NAMESPACE b/NAMESPACE
index d27b622..c656a67 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -38,13 +38,11 @@ importFrom(madrat,toolGetMapping)
 importFrom(madrat,toolNAreplace)
 importFrom(madrat,toolSplitSubtype)
 importFrom(madrat,toolSubtypeSelect)
-importFrom(madrat,vcat)
 importFrom(magclass,"getCells<-")
 importFrom(magclass,"getComment<-")
 importFrom(magclass,"getItems<-")
 importFrom(magclass,"getNames<-")
 importFrom(magclass,"getRegions<-")
-importFrom(magclass,"getSets<-")
 importFrom(magclass,"getYears<-")
 importFrom(magclass,add_columns)
 importFrom(magclass,add_dimension)
diff --git a/R/calcValidIncome.R b/R/calcValidIncome.R
index 63debb5..6f01185 100644
--- a/R/calcValidIncome.R
+++ b/R/calcValidIncome.R
@@ -3,17 +3,13 @@
 #' Returns historical development of income and future projections of income dynamics
 #'
 #'
-#' @param datasource To switch between historical values of James et al (default) or
-#' with future projections for different scenarios (James_OECD_Nakicenovic)
+#' @param datasource "WDI_SSPs", the only one option at the moment.
 #' @return list of magpie object with data and weight. Since intensive and extensive variables
 #' are mixed please keep the mixed_aggregation
-#' @importFrom madrat vcat calcOutput
-#' @importFrom magclass mbind add_dimension getSets getSets<- collapseNames getYears
 #' @author Florian Humpenoeder, Abhijeet Mishra, Kristine Karstens
+calcValidIncome <- function(datasource = "WDI_SSPs") {
 
-calcValidIncome <- function(datasource = "WDI-MI_SSPs-MI") {
-
-  if (datasource == "WDI-MI_SSPs-MI") {
+  if (datasource == "WDI_SSPs") {
 
     .tmp <- function(x, nm) {
       getSets(x)[3] <- "scenario"
@@ -64,10 +60,9 @@ calcValidIncome <- function(datasource = "WDI-MI_SSPs-MI") {
     stop("Given datasource currently not supported!")
   }
 
-  return(list(x = out,
-              weight = weight,
-              mixed_aggregation = TRUE,
-              unit = "(million) US Dollar 2017 equivalents in MER/yr, MER/cap/yr, PPP/yr, PPP/cap/yr",
-              description = "Income")
-  )
+  list(x = out,
+       weight = weight,
+       mixed_aggregation = TRUE,
+       unit = "(million) US Dollar 2017 equivalents in MER/yr, MER/cap/yr, PPP/yr, PPP/cap/yr",
+       description = "Income")
 }
diff --git a/R/calcValidPopulation.R b/R/calcValidPopulation.R
index 3ae29c9..64a18f7 100644
--- a/R/calcValidPopulation.R
+++ b/R/calcValidPopulation.R
@@ -2,53 +2,31 @@
 #'
 #' Returns historical development of population and future projections of population dynamics
 #'
-#'
-#' @param PopulationPast population past data source
-#' @param PopulationFuture population future data source
-#' @param TimeFromFindSet boolean deciding something
+#' @param pastData population past data source
+#' @param futureData population future data source
 #' @return list of magpie object with data and weight
 #' @author Florian Humpenoeder, Jan Philipp Dietrich, David Chen
-#' @importFrom magclass getRegions
-#' @import mrdrivers
-calcValidPopulation <- function(PopulationPast   = "WDI-UN_PopDiv-MI",
-                                PopulationFuture = c("SSPs-UN_PopDiv-MI",
-                                                     "SDPs-UN_PopDiv-MI",
-                                                     "SSP2EU-UN_PopDiv-MI"),
-                                TimeFromFindSet = TRUE) {
-
-  past   <- calcOutput("PopulationPast",
-                       PopulationPast = PopulationPast,
-                       aggregate = FALSE)
-  getNames(past) <- paste("historical", paste0(PopulationPast), "Population (million people)", sep = ".")
-  getSets(past)[3] <- "scenario.model.variable"
+calcValidPopulation <- function(pastData = "WDI-UN_PopDiv-MI", futureData = "SSPs-UN_PopDiv") {
 
-  future <- NULL
-  for (i in 1:length(PopulationFuture)) {
-  tmp <- calcOutput("PopulationFuture",
-                    PopulationFuture = PopulationFuture[i],
-                    extension2150 = "bezier",
-                    aggregate = FALSE)
-  future <- mbind(future, tmp)
-  }
+  past   <- calcOutput("PopulationPast", pastData = pastData, aggregate = FALSE)
+  future <- calcOutput("PopulationFuture", futureData = futureData, aggregate = FALSE)
 
-
-  getNames(future) <- paste(sub("^pop_", "", getNames(future)),
-                            paste0(PopulationFuture, collapse = "_and_"),
-                            "Population (million people)",
-                            sep = ".")
+  getNames(past) <- paste("historical", pastData, "Population (million people)", sep = ".")
+  getNames(future) <- paste(getNames(future), futureData, "Population (million people)", sep = ".")
+  getSets(past)[3] <- "scenario.model.variable"
   getSets(future)[3] <- "scenario.model.variable"
 
-  out <- new.magpie(getRegions(past),
-                    union(getYears(past), getYears(future)),
-                    c(getNames(past), getNames(future)),
+  out <- new.magpie(cells_and_regions = getItems(past, 1),
+                    years = union(getYears(past), getYears(future)),
+                    names = c(getNames(past), getNames(future)),
+                    sets = c("region", "year", "scenario.model.variable"),
                     fill = NA)
   out[, getYears(past), getNames(past)] <- past
   out[, getYears(future), getNames(future)] <- future
 
-  getSets(out, fulldim = FALSE)[3] <- "scenario.model.variable"
-  return(list(x = out, weight = NULL, unit = "million",
-              description = paste0("Population data. Datasource for the Past: ",
-                                 PopulationPast,
-                                 ". Datasource for the Future: ",
-                                 paste0(PopulationFuture, collapse = ", "))))
+  list(x = out,
+       weight = NULL,
+       unit = "million",
+       description = paste0("Population data. Datasource for the Past: ", pastData, ". Datasource for the Future: ",
+                            futureData))
 }
diff --git a/man/calcValidIncome.Rd b/man/calcValidIncome.Rd
index 21fa845..1e3ba16 100644
--- a/man/calcValidIncome.Rd
+++ b/man/calcValidIncome.Rd
@@ -4,11 +4,10 @@
 \alias{calcValidIncome}
 \title{calcValidIncome}
 \usage{
-calcValidIncome(datasource = "WDI-MI_SSPs-MI")
+calcValidIncome(datasource = "WDI_SSPs")
 }
 \arguments{
-\item{datasource}{To switch between historical values of James et al (default) or
-with future projections for different scenarios (James_OECD_Nakicenovic)}
+\item{datasource}{"WDI_SSPs", the only one option at the moment.}
 }
 \value{
 list of magpie object with data and weight. Since intensive and extensive variables
diff --git a/man/calcValidPopulation.Rd b/man/calcValidPopulation.Rd
index 6924361..538de8b 100644
--- a/man/calcValidPopulation.Rd
+++ b/man/calcValidPopulation.Rd
@@ -5,17 +5,14 @@
 \title{calcValidPopulation}
 \usage{
 calcValidPopulation(
-  PopulationPast = "WDI-UN_PopDiv-MI",
-  PopulationFuture = c("SSPs-UN_PopDiv-MI", "SDPs-UN_PopDiv-MI", "SSP2EU-UN_PopDiv-MI"),
-  TimeFromFindSet = TRUE
+  pastData = "WDI-UN_PopDiv-MI",
+  futureData = "SSPs-UN_PopDiv"
 )
 }
 \arguments{
-\item{PopulationPast}{population past data source}
+\item{pastData}{population past data source}
 
-\item{PopulationFuture}{population future data source}
-
-\item{TimeFromFindSet}{boolean deciding something}
+\item{futureData}{population future data source}
 }
 \value{
 list of magpie object with data and weight