What we count
The average annual area of previously healthy and productive land reported as degraded in national submissions.
Land degraded worldwide so far this year, based on UNCCD's latest global rate, and why land degradation is not the same as desert formation.
The average annual area of previously healthy and productive land reported as degraded in national submissions.
The average annual area of previously healthy and productive land reported as degraded in national submissions.
UNCCD evaluates national reports for SDG indicator 15.3.1 using changes in land productivity, land cover and soil organic carbon stocks.
The global result is partial because not every country reported every indicator. Land degradation also means more than land turning into desert.
The calculation uses the latest published annual value reported by UNCCD Data Dashboard — SDG 15.3.1 for 2015–2019 (average annual change from national reports).
How the value is used: The running number shows the share corresponding to time elapsed since the start of the calendar year.
We distribute the latest published annual value evenly across the elapsed share of the calendar year.
V(t) = Vyear × elapsed share of the yearAnnual reference value100,000,0002015–2019 (average annual change from national reports) · hectares
Average per day273,791even annual distribution
Calculation interval0.1 sContinuously calculated
UNCCD Data Dashboard — SDG 15.3.1 reports the annual value used by the calculation for 2015–2019 (average annual change from national reports).
We calculate the share corresponding to time elapsed since the start of the calendar year. The counter restarts at the beginning of a new year.
The result is recalculated on screen every 0.1 seconds.
The source value comes from UNCCD Data Dashboard — SDG 15.3.1 and refers to 2015–2019 (average annual change from national reports). It is the latest value published by this source. UNCCD evaluates national reports for SDG indicator 15.3.1 using changes in land productivity, land cover and soil organic carbon stocks.