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diff --git a/datasets/ozone/.gitignore b/datasets/ozone/.gitignore
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+old/
diff --git a/datasets/ozone/README.md b/datasets/ozone/README.md
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+# Ozone-depleting substance emissions
+
+This dataset contains "Global emissions of ozone-depleting substances, 
+measured in tonnes of chlorofluorocarbon-11 equivalents
+(CFC11-equivalents) per year." It is obtained from [Our World in 
+Data](https://ourworldindata.org/ozone-layer), who have scraped the data from:
+
+Hegglin, M. I., Fahey, D. W., McFarland, M., Montzka, S. A., & Nash, E. R. 
+(2014). [Twenty questions and answers about the ozone layer: 2014 
+update](https://www.wmo.int/pages/prog/arep/gaw/ozone_2014/documents/2014%20Twenty%20Questions_Final.pdf). 
+World Meteorological Organization, UNEP, NOAA, NASA, and European Commission.
+
+A change is expected after the signing of the [Montreal 
+Protocol](https://en.wikipedia.org/wiki/Montreal_Protocol).
+
+The chart in the article by [Our World in 
+Data](https://ourworldindata.org/ozone-layer) is licensed under [CC BY 
+4.0](https://creativecommons.org/licenses/by/4.0/deed.en_US). No changes to 
+the data were made. The original data sourced from Hegglin et al., 2015 (cited 
+above) is in the public domain.
+
+The ``ozone.json`` file can be obtained from the original 
+``./ozone-depleting-substance-emissions.csv`` by running:
+
+```
+$ python convert.py ./ozone-depleting-substance-emissions.csv ./ozone.json
+```
+
+![Plot of ozone dataset](./ozone.png)
diff --git a/datasets/ozone/convert.py b/datasets/ozone/convert.py
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+++ b/datasets/ozone/convert.py
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+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+Dataset conversion script
+
+Author: G.J.J. van den Burg
+
+"""
+
+import argparse
+import clevercsv
+import json
+
+
+def parse_args():
+    parser = argparse.ArgumentParser()
+    parser.add_argument("input_file", help="File to convert")
+    parser.add_argument("output_file", help="File to write to")
+    return parser.parse_args()
+
+
+def main():
+    args = parse_args()
+
+    with open(args.input_file, "r", newline="", encoding="ascii") as fp:
+        reader = clevercsv.reader(
+            fp, delimiter=",", quotechar="", escapechar=""
+        )
+        rows = list(reader)
+
+    header = rows.pop(0)
+
+    total = [r for r in rows if r[0] == "Total emissions"]
+    time = [r[2] for r in total]
+    values = [int(r[-1]) for r in total]
+
+    name = "ozone"
+    longname = "Ozone-Depleting Emissions"
+    time_fmt = "%Y"
+
+    series = [{"label": "Total Emissions", "type": "int", "raw": values}]
+
+    data = {
+        "name": name,
+        "longname": longname,
+        "n_obs": len(time),
+        "n_dim": len(series),
+        "time": {
+            "type": "string",
+            "format": time_fmt,
+            "index": list(range(len(time))),
+            "raw": time,
+        },
+        "series": series,
+    }
+
+    with open(args.output_file, "w") as fp:
+        json.dump(data, fp, indent="\t")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/datasets/ozone/ozone-depleting-substance-emissions.csv b/datasets/ozone/ozone-depleting-substance-emissions.csv
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@@ -0,0 +1,109 @@
+Entity,Code,Year,Ozone-depleting substance emissions (Scientific Assessment 2014) (tonnes CFC11-equivalents)
+Natural emissions,,1961,165000
+Natural emissions,,1962,165000
+Natural emissions,,1963,165000
+Natural emissions,,1964,165000
+Natural emissions,,1965,165000
+Natural emissions,,1966,165000
+Natural emissions,,1967,165000
+Natural emissions,,1968,165000
+Natural emissions,,1969,165000
+Natural emissions,,1970,165000
+Natural emissions,,1971,165000
+Natural emissions,,1972,165000
+Natural emissions,,1973,165000
+Natural emissions,,1974,165000
+Natural emissions,,1975,165000
+Natural emissions,,1976,165000
+Natural emissions,,1977,165000
+Natural emissions,,1978,165000
+Natural emissions,,1979,165000
+Natural emissions,,1980,165000
+Natural emissions,,1981,165000
+Natural emissions,,1982,165000
+Natural emissions,,1983,165000
+Natural emissions,,1984,165000
+Natural emissions,,1985,165000
+Natural emissions,,1986,165000
+Natural emissions,,1987,165000
+Natural emissions,,1988,165000
+Natural emissions,,1989,165000
+Natural emissions,,1990,165000
+Natural emissions,,1991,165000
+Natural emissions,,1992,165000
+Natural emissions,,1993,165000
+Natural emissions,,1994,165000
+Natural emissions,,1995,165000
+Natural emissions,,1996,165000
+Natural emissions,,1997,165000
+Natural emissions,,1998,165000
+Natural emissions,,1999,165000
+Natural emissions,,2000,165000
+Natural emissions,,2001,165000
+Natural emissions,,2002,165000
+Natural emissions,,2003,165000
+Natural emissions,,2004,165000
+Natural emissions,,2005,165000
+Natural emissions,,2006,165000
+Natural emissions,,2007,165000
+Natural emissions,,2008,165000
+Natural emissions,,2009,165000
+Natural emissions,,2010,165000
+Natural emissions,,2011,165000
+Natural emissions,,2012,165000
+Natural emissions,,2013,165000
+Natural emissions,,2014,165000
+Total emissions,,1961,380000
+Total emissions,,1962,400000
+Total emissions,,1963,440000
+Total emissions,,1964,480000
+Total emissions,,1965,510000
+Total emissions,,1966,540000
+Total emissions,,1967,580000
+Total emissions,,1968,630000
+Total emissions,,1969,660000
+Total emissions,,1970,720000
+Total emissions,,1971,770000
+Total emissions,,1972,840000
+Total emissions,,1973,910000
+Total emissions,,1974,980000
+Total emissions,,1975,1040000
+Total emissions,,1976,1050000
+Total emissions,,1977,1070000
+Total emissions,,1978,1070000
+Total emissions,,1979,1110000
+Total emissions,,1980,1080000
+Total emissions,,1981,1040000
+Total emissions,,1982,1100000
+Total emissions,,1983,1090000
+Total emissions,,1984,1150000
+Total emissions,,1985,1180000
+Total emissions,,1986,1280000
+Total emissions,,1987,1360000
+Total emissions,,1988,1460000
+Total emissions,,1989,1410000
+Total emissions,,1990,1320000
+Total emissions,,1991,1190000
+Total emissions,,1992,1080000
+Total emissions,,1993,960000
+Total emissions,,1994,820000
+Total emissions,,1995,760000
+Total emissions,,1996,700000
+Total emissions,,1997,640000
+Total emissions,,1998,600000
+Total emissions,,1999,590000
+Total emissions,,2000,560000
+Total emissions,,2001,530000
+Total emissions,,2002,490000
+Total emissions,,2003,480000
+Total emissions,,2004,470000
+Total emissions,,2005,450000
+Total emissions,,2006,430000
+Total emissions,,2007,410000
+Total emissions,,2008,400000
+Total emissions,,2009,390000
+Total emissions,,2010,380000
+Total emissions,,2011,370000
+Total emissions,,2012,350000
+Total emissions,,2013,340000
+Total emissions,,2014,320000
\ No newline at end of file
diff --git a/datasets/ozone/ozone.json b/datasets/ozone/ozone.json
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+{
+	"name": "ozone",
+	"longname": "Ozone-Depleting Emissions",
+	"n_obs": 54,
+	"n_dim": 1,
+	"time": {
+		"type": "string",
+		"format": "%Y",
+		"index": [
+			0,
+			1,
+			2,
+			3,
+			4,
+			5,
+			6,
+			7,
+			8,
+			9,
+			10,
+			11,
+			12,
+			13,
+			14,
+			15,
+			16,
+			17,
+			18,
+			19,
+			20,
+			21,
+			22,
+			23,
+			24,
+			25,
+			26,
+			27,
+			28,
+			29,
+			30,
+			31,
+			32,
+			33,
+			34,
+			35,
+			36,
+			37,
+			38,
+			39,
+			40,
+			41,
+			42,
+			43,
+			44,
+			45,
+			46,
+			47,
+			48,
+			49,
+			50,
+			51,
+			52,
+			53
+		],
+		"raw": [
+			"1961",
+			"1962",
+			"1963",
+			"1964",
+			"1965",
+			"1966",
+			"1967",
+			"1968",
+			"1969",
+			"1970",
+			"1971",
+			"1972",
+			"1973",
+			"1974",
+			"1975",
+			"1976",
+			"1977",
+			"1978",
+			"1979",
+			"1980",
+			"1981",
+			"1982",
+			"1983",
+			"1984",
+			"1985",
+			"1986",
+			"1987",
+			"1988",
+			"1989",
+			"1990",
+			"1991",
+			"1992",
+			"1993",
+			"1994",
+			"1995",
+			"1996",
+			"1997",
+			"1998",
+			"1999",
+			"2000",
+			"2001",
+			"2002",
+			"2003",
+			"2004",
+			"2005",
+			"2006",
+			"2007",
+			"2008",
+			"2009",
+			"2010",
+			"2011",
+			"2012",
+			"2013",
+			"2014"
+		]
+	},
+	"series": [
+		{
+			"label": "Total Emissions",
+			"type": "int",
+			"raw": [
+				380000,
+				400000,
+				440000,
+				480000,
+				510000,
+				540000,
+				580000,
+				630000,
+				660000,
+				720000,
+				770000,
+				840000,
+				910000,
+				980000,
+				1040000,
+				1050000,
+				1070000,
+				1070000,
+				1110000,
+				1080000,
+				1040000,
+				1100000,
+				1090000,
+				1150000,
+				1180000,
+				1280000,
+				1360000,
+				1460000,
+				1410000,
+				1320000,
+				1190000,
+				1080000,
+				960000,
+				820000,
+				760000,
+				700000,
+				640000,
+				600000,
+				590000,
+				560000,
+				530000,
+				490000,
+				480000,
+				470000,
+				450000,
+				430000,
+				410000,
+				400000,
+				390000,
+				380000,
+				370000,
+				350000,
+				340000,
+				320000
+			]
+		}
+	]
+}
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diff --git a/datasets/ozone/ozone.png b/datasets/ozone/ozone.png
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