Identifying Climate Hazards
Mapping the climate threats specific to your context
Your Progress
Section 2 of 5Step 1: Know Your Climate Threats
Hazard β Risk
A hazard is a potential threat. It only becomes a risk when combined with exposure and vulnerability. A Category 5 hurricane in the open ocean is a hazard but low risk. The same hurricane hitting a densely populated coast is high risk.
πCoastal Zone Climate Hazards
Sea-Level Rise
Severity: 9/10
Frequency:Chronic
Trend:Accelerating
Storm Surge
Severity: 8/10
Frequency:Increasing
Trend:More intense
Coastal Erosion
Severity: 7/10
Frequency:Chronic
Trend:Accelerating
Saltwater Intrusion
Severity: 6/10
Frequency:Chronic
Trend:Expanding
Hurricanes/Cyclones
Severity: 9/10
Frequency:Seasonal
Trend:More intense
Pro tip: Hazard identification should combine climate projections, historical data, and local knowledge. Don't just look at averagesβextreme events often drive the most severe impacts.
Hazard Identification Framework
1Review Climate Projections
- Global models (GCMs): IPCC reports, CMIP6 ensemble projections
- Regional models (RCMs): Downscaled projections for your region
- Key variables: Temperature, precipitation, sea level, wind, extreme events
- Multiple scenarios: RCP/SSP pathways (e.g., SSP1-2.6, SSP2-4.5, SSP5-8.5)
2Analyze Historical Patterns
- Trend analysis: Are extreme events becoming more frequent/intense?
- Analog years: Historical events that may represent future "normal"
- Return periods: How often do threshold events occur (1-in-100 year flood)?
- Impact records: What climate events caused damage in the past?
3Engage Local Expertise
- Community knowledge: Long-term residents observe changes climate models miss
- Sectoral experts: Farmers, water managers, public health officials know system-specific risks
- Indigenous knowledge: Traditional knowledge captures long-term environmental changes
- Participatory mapping: Co-create hazard maps with affected communities
β‘Critical: Consider Compound and Cascading Hazards
Real-world climate risks rarely come solo. Drought + heat wave = crop failure. Hurricane + power outage = health crisis. Wildfire + heavy rain = landslide. Your hazard analysis must consider how threats interact and trigger cascades.