The global pulse.

Where this atlas documents environmental issues, by category and severity. The Pulse shows the presence and density of documented issues — it reflects what TerraLens covers, not a measurement of global prevalence.

Category

Minimum severity

Issues shown: 19
Places: 19

Water: Freshwater availability, drought, flooding, groundwater and water quality.

Severity distribution · Water

Low0
Moderate5
High10
Critical4

Documented issues by category

Places · most severe first

JakartaSeverity: Critical
- Land subsidence and flooding in Jakarta
Northern KenyaSeverity: Critical
- Recurring drought in northern Kenya
MadagascarSeverity: Critical
- Drought and food insecurity in southern Madagascar
Mexico CitySeverity: Critical
- Subsidence and water stress in Mexico City
Cape TownSeverity: High
- Drought and municipal water security in Cape Town
Manaus / AmazonSeverity: High
- Extreme river drought in the Amazon basin
DelhiSeverity: High
- Groundwater depletion in the Delhi region
MumbaiSeverity: High
- Monsoon flooding in Mumbai
BengaluruSeverity: High
- Lake loss and water stress in Bengaluru
BeijingSeverity: High
- Water scarcity on the North China Plain
DhakaSeverity: High
- River pollution and waterlogging in Dhaka
NairobiSeverity: High
- Nairobi River pollution
LagosSeverity: High
- Flooding and coastal erosion in Lagos
PhoenixSeverity: High
- Colorado River supply and groundwater in Phoenix
DubaiSeverity: Moderate
- Desalination dependence in Dubai
SingaporeSeverity: Moderate
- Water security on a land-scarce island
TokyoSeverity: Moderate
- River flood defence in Tokyo
BogotáSeverity: Moderate
- Páramo ecosystems and Bogotá's water supply
LondonSeverity: Moderate
- Tidal flood risk on the Thames

Severity is descriptive editorial metadata summarising documented effects. It is not a measured index or a score.