Greenland's land area grew 20% in the World Bank record, and which countries shrank the most

It reads like a line from a climate report: since 1961, Greenland's recorded land area has grown by more than 20 percent. The figure is real, but the reason has nothing to do with the island gaining ground — and it is a useful lesson in what national land-area statistics actually measure.

The World Bank keeps a land-area series for every country back to 1961. Compare the earliest and latest values and the planet looks surprisingly restless: across 223 countries and territories, 37 report a smaller land area in 2014 than in 1961, 20 report a larger one, and 151 are unchanged. Yet almost none of the movement is land physically appearing or disappearing. It is boundaries redrawn, coastlines reclaimed from the sea, and figures resurveyed.

Greenland is the clearest case. Its recorded land area climbed by 68,750 sq km — about 20 percent — between 1996 and 1997, jumping from 341,700 to 410,450 sq km. That is not new coastline. In this data "land area" excludes the ice sheet, and the revision simply recorded more of the ice-free fringe as land. The island itself, ice included, covers roughly 2.17 million sq km and did not change.

The countries that "shrank" the most

The largest fall in the whole series belongs to Ethiopia, down roughly 101,000 sq km. That drop lands entirely in 1993, when its recorded land area fell from about 1.22 million sq km to around 1.0 million. The cause is not erosion or drought but independence: Eritrea seceded in 1993, taking some 120,000 sq km of Red Sea coast with it. A new border, not lost land.

Measured as a share of national territory, the biggest faller is St. Kitts and Nevis, whose recorded land area drops about 26 percent across the period. The tidy conclusion would be rising seas swallowing a small Caribbean nation, but a quarter of a country vanishing is far too large for coastal erosion over a few decades. It is a resurvey of a tiny land base, where a modest absolute correction becomes a dramatic percentage. Bhutan, Ecuador and Vietnam show similar revision-driven falls.

Almost every dramatic change in the land-area data is a border moving or a figure being corrected — not the ground itself gaining or losing shape.

The ones that grew are mostly reclaimed

The growers tell the same story from the other side. After Greenland, the fastest riser in percentage terms is Macao, up more than 50 percent. That one is genuinely new land: Macao has spent decades reclaiming ground from the sea, expanding from roughly 17 sq km in the early 1990s toward 30 sq km today. Bahrain, Singapore and Hong Kong appear on the same list for the same reason — land reclamation, one of the few ways a country really can enlarge itself.

What "land area" actually measures

The confusion comes from the definition. In this series, land area is a country's total area minus its inland water — lakes, reservoirs and major rivers. It is a bookkeeping figure assembled from national surveys, and it changes whenever those surveys are updated or a border is redrawn. Read that way, the data is less a map of a restless planet than a record of how measurement itself improves and shifts.

Where borders are still unsettled

If land area rarely changes, ownership of it is another matter. Dozens of territorial disputes remain active, from long-running maritime lines to the summit of Mont Blanc, where France and Italy have never fully agreed on where the border runs. At the opposite extreme, only two pieces of ordinary land on Earth are claimed by no one at all: Bir Tawil, a barren strip left ownerless by conflicting Egypt–Sudan boundary lines, and Marie Byrd Land, a vast slice of West Antarctica that fell outside every claim staked before the 1959 Antarctic Treaty.

How to read a shrinking country

• Check the year of the change — a sudden one-year jump usually signals a border shift or a resurvey, not gradual physical change.
• Watch for independence and secession: new countries make old ones "shrink" overnight in the data.
• Treat large percentage swings in tiny states with caution — small denominators exaggerate minor corrections.
• Remember that "land area" excludes inland water and, for Greenland, the ice sheet.

Frequently asked questions