Chlorophyll-a deviation from the global average in Guam
Guam: Chlorophyll-a deviation from the global average was 0.0% in 2022. ◆ Volatile
Chlorophyll-a deviation from the global average in Guam, 2005–2022
Source: UN Statistics Division – processed by Our World in Data. Measured in %.
Analysis
The most recent figure for chlorophyll-a deviation from the global average in Guam is 0.0%, measured in 2022. That is the lowest value across all 18 years on record.
The figure is down 33.3% over ten years.
Over the whole period, chlorophyll-a deviation from the global average in Guam peaked at 0.4% in 2019 and was at its lowest, 0.0%, in 2016.
That places Guam 186th out of 195 countries with data for 2022, putting it in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Chlorophyll-a deviation from the global average in Guam, year by year
| Year | % | Change |
|---|---|---|
| 2005 | 0.2% | — |
| 2006 | 0.1% | -45.8% |
| 2007 | 0.1% | -30.8% |
| 2008 | 0.1% | -11.1% |
| 2009 | 0.1% | -12.5% |
| 2010 | 0.0% | -42.9% |
| 2011 | 0.2% | +325.0% |
| 2012 | 0.0% | -82.4% |
| 2013 | 0.0% | +0.0% |
| 2014 | 0.0% | +0.0% |
| 2015 | 0.1% | +300.0% |
| 2016 | 0.0% | -83.3% |
| 2017 | 0.0% | +0.0% |
| 2018 | 0.0% | +0.0% |
| 2019 | 0.4% | +1950.0% |
| 2020 | 0.0% | -95.1% |
| 2021 | 0.0% | +0.0% |
| 2022 | 0.0% | +0.0% |
Guam compared with similar countries
- Guam's 0.0% is below the median for high income countries, which is 1.2%, 2% of the median. (71 countries reporting)
- Guam's 0.0% is below the median for East Asia & Pacific, which is 0.6%, 4% of the median. (32 countries reporting)
Biggest year-on-year movements
Years where Chlorophyll-a deviation from the global average in Guam changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 2019 | +1950.0% | 0.0% | 0.4% |
| 2011 | +325.0% | 0.0% | 0.2% |
| 2015 | +300.0% | 0.0% | 0.1% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 0.1% | 0.1% | 0.2% | 5 |
| 2010s | 0.1% | 0.0% | 0.4% | 10 |
| 2020s | 0.0% | 0.0% | 0.0% | 3 |
Countries ranked near Guam
More reference data data for Guam
- Emission Totals - Emissions (CO2eq) from CH4 (AR5) - IPCC Agriculture 0.0012 (2050)
- Emission Totals - Emissions (N2O) - Burning - Crop residues 0 (2050)
- Emission Totals - Emissions (N2O) - Agricultural Soils 0 (2050)
- Emission Totals - Emissions (CO2eq) from N2O (AR5) - IPCC Agriculture 0.004 (2050)
- Emission Totals - Emissions (CO2eq) from N2O (AR5) - Crop Residues 0.0037 (2050)
- Emission Totals - Emissions (CO2eq) from N2O (AR5) - Agricultural 0.0037 (2050)
- Emission Totals - Emissions (CO2eq) from N2O (AR5) - Burning - Crop 0.0003 (2050)
- Emission Totals - Emissions (CH4) - IPCC Agriculture 0 (2050)
- Emission Totals - Emissions (CH4) - Burning - Crop residues 0 (2050)
- Emission Totals - Direct emissions (N2O) - IPCC Agriculture 0 (2050)
Frequently asked questions
- What is chlorophyll-a deviation from the global average in Guam?
- Chlorophyll-a deviation from the global average in Guam was 0.0% in 2022, according to UN Statistics Division – processed by Our World in Data.
- What is the highest chlorophyll-a deviation from the global average recorded in Guam?
- The highest recorded value was 0.4% in 2019.
- What is the lowest chlorophyll-a deviation from the global average recorded in Guam?
- The lowest recorded value was 0.0% in 2016.
- How does Guam rank for chlorophyll-a deviation from the global average?
- Guam ranks 186th out of 195 countries with data for 2022.
- Is chlorophyll-a deviation from the global average rising or falling in Guam?
- Over the last ten years it is down 33.3%. The long-run trend across the full record is volatile.
- Where does this Guam data come from?
- The figures come from UN Statistics Division – processed by Our World in Data, published as part of Chlorophyll-a deviation from the global average. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 18 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Chlorophyll-a deviations, remote sensing (%).