Guam

Country profile

Air pollution (PM2.5)
1.90
µg/m³ annual mean · 2024
239th of 241 countries

Energy

Energy use per person

44,566 kWh/person/year · 2023
-53% since 199332nd highest of 216 · 2023
050k100k150k19801990200020102020high 1981low 1985

How much energy each person uses in a year, across electricity, transport, heating and industry. Energy Institute / Ember via Our World in Data

Solar electricity

8.60 % of electricity · 2024
+8.6 pp since 200049th highest of 195 · 2024
0520002005201020152020

The share of a country's electricity generated from solar panels. The fastest-growing energy source in history. Ember / Energy Institute via Our World in Data

Wind electricity

0.00 % of electricity · 2024
+0.0 pp since 2000106th highest of 193 · 2024
-10120002005201020152020

The share of a country's electricity generated from wind turbines, onshore and offshore. Ember / Energy Institute via Our World in Data

Coal electricity

0.00 % of electricity · 2024
+0.0 pp since 200081st highest of 194 · 2024
-10120002005201020152020

The share of electricity still generated by burning coal, the most polluting fuel. The number that must reach zero first. Ember / Energy Institute via Our World in Data

Oil electricity

91.4 % of electricity · 2024
-8.6 pp since 200017th highest of 195 · 2024
05010020002005201020152020

The share of a country's electricity generated by burning oil. Rare on big grids, still common on islands. Ember via Our World in Data

Gas electricity

0.00 % of electricity · 2024
+0.0 pp since 2000117th highest of 192 · 2024
-10120002005201020152020

The share of a country's electricity generated from natural gas, the least polluting fossil fuel but still a fossil fuel. Ember via Our World in Data

Land & Life

Forest area

52.4 % of land · 2025
+7.9 pp since 199553rd highest of 212 · 2025
020401990200020102020Worldhigh 2015

How much of a country's land is covered by forest. FAO via Our World in Data

Red List Index

0.36 index (1 = species safe) · 2024
-49% since 1994244th highest of 244 · 2024
00.20.40.6200020102020

Tracks extinction risk across all assessed species. 1 means no species at risk; falling values mean wildlife sliding towards extinction. IUCN / SDG 15.5.1 via Our World in Data

Protected land

4.20 % of land area · 2024
-23 pp since 2013184th highest of 213 · 2024
01020201420162018202020222024World

The share of a country's land under legal protection for nature. The global 30x30 target aims for 30% by 2030. World Bank / UNEP-WCMC via Our World in Data

Marine protected areas

0.00 % of territorial waters · 2024
-0.1 pp since 2013149th highest of 174 · 2024
051015201420162018202020222024World

How much of a country's coastal waters are protected for nature. The global goal is 30% by 2030. UNEP-WCMC via Our World in Data

Urban population

94.2 % living in cities · 2025
+2.2 pp since 199529th highest of 236 · 2025
0501001960198020002020World

The share of people living in towns and cities. Urbanisation shapes energy use, land use and how people experience climate change. UN World Urbanization Prospects via Our World in Data

Water

Safely managed drinking water

94.0 % of population · 2024
-5.5 pp since 200062nd highest of 159 · 2024
05010020002005201020152020Worldhigh 2001

The share of people with safe drinking water at home, available when needed and free from contamination. WHO/UNICEF JMP via Our World in Data

Pollution

Air pollution (PM2.5)

1.90 µg/m³ annual mean · 2024
+5.6% since 1998239th highest of 241 · 2024
010203020002005201020152020Worldhigh 2015

Average exposure to fine particles small enough to enter the bloodstream. The WHO guideline is 5 µg/m³. World Bank / van Donkelaar et al. via Our World in Data

What can one person do?

  • Fly less
    One long-haul return flight can outweigh a year of other savings. Swap one flight for a train trip or a call.
  • Eat more plants
    Shifting towards a plant-rich diet is one of the largest steady cuts a person can make, and it starts with single meals.
  • Travel without a car where you can
    Walking, cycling and public transport beat an electric car; an electric car beats petrol.
  • Use your voice
    Personal footprints matter, but system change matters more. Vote, ask your employer and bank what they are doing, and talk about it.

Based on the highest-impact personal actions identified by Wynes & Nicholas (2017) and the IPCC's AR6 report on demand-side mitigation.