Local Government Climate Change Support Program 2016 Climate Change Indicators for Gauteng

Climate Trends & Scenarios for RSA Four Futures: 1. 2. 3. 4.

Warmer Wetter Hotter Wetter Warmer Drier Hotter Drier

Average Temperature

Increasing Temperatures

Warmer

2016

Hotter

2050

2100

More variable rainfall 1. 2. 3. 4.

Risk of Drier conditions to the west and south of RSA Risk of Wetter conditions over the east of the country More intense rainfall events Delay onset of rain season

Climate Futures for SA: Scenario 1 - Warmer Wetter ●

Warmer (<3°C above 1961–2000), wetter, greater frequency of extreme rainfall events.

Scenario 2 - Hotter Wetter ●

Hotter (>3°C above 1961–2000), wetter, substantially greater frequency of extreme rainfall events.

Climate Futures for SA: Scenario 3 - Warmer Drier ●

Warmer (<3°C above 1961–2000), drier, increase in the frequency of drought events, somewhat greater frequency of extreme rainfall events.

Scenario 4 - Hotter Drier ●

Hotter (>3°C above 1961–2000), drier, substantial increase in the frequency of drought events, greater frequency of extreme rainfall events.

Hotter > 3 degrees Warmer < 3 degrees

Scenario 2 - Hotter Drier Hotter (>3°C above 1961–2000), drier, substantial increase in the frequency of drought events, greater frequency of extreme rainfall events. Scenario 1 - Warmer Drier Warmer (<3°C above 1961–2000), drier, increase in the frequency of drought events, somewhat greater frequency of extreme rainfall events.

Drier

Scenario 3 - Hotter Wetter Hotter (>3°C above 1961–2000), wetter, substantially greater frequency of extreme rainfall events.

Scenario 4 - Warmer Wetter Warmer (<3°C above 1961–2000), wetter, greater frequency of extreme rainfall events

Wetter

Hydrological Zones

Limpopo/Olifants/Inkomati - Hydrological Zone Rainfall Scenarios

↑

↑

↑↑↑

↑↑↑

↓ ↓↓↓

↓ ↓↓↓

↓ ↓↓↓

Vaal - Hydrological Zone Rainfall Scenarios

↑

↑

↑↑↑ ↓ ↑

↑↑↑ ↑↓

↓↓↓

↑ ↓ ↓↓↓ ↓

↓↑ ↓↓↓ ↓

↓↓↓ ↓ ↓↓↓

Agriculture

Sedibeng Mean maize yields (T/Ha/Season)

West Rand Mean maize yields (T/Ha/Season)

Sedibeng Percentage of Households involved in agricultural activities

West Rand Percentage of Households involved in agricultural activities

Biodiversity and Environment

Sedibeng Current Biomes

Sedibeng Medium Risk Biomes

Sedibeng High Risk Biomes

West Rand Biomes

West Rand Medium Risk Biomes

West Rand High Risk Biomes

Threatened Ecosystems

Human Health

Sedibeng Vulnerable Age Groups

West Rand Vulnerable Age Groups

Human Settlements

Sedibeng % Households in Informal Dwellings

West Rand % Households in Informal Dwellings

Gauteng Key Indicators

District

Percentage Percentage Percentage Percentage Percentage of of young workforce households Percentage Households Households (<5yrs) and employed in involved in Population that are with no elderly the informal agricultural with flush Informal rubbish (>64yrs) Sector activities toilets Dwelling disposal

Sedibeng District Municipality

14.88%

9.57%

9.35%

89.85%

14.27%

1.67%

West Rand District Municipality

13.54%

10.33%

7.14%

83.23%

25.33%

3.37%

Water

Blue and Green Drop Scores - Key

Score

Blue Drop Score Rates quality of drinking water

Green Drop Rates wastewater treatment

Excellent

90% - 100%

90% - 100%

Good

75% - 90%

80% - 90%

Average

50% - 75%

50% - 80%

Poor

33% - 50%

30% - 50%

Critical

0% - 33%

0% - 30%

Blue and Green Drop Scores - Sedibeng DM

Municipality

Blue Drop Score Rates quality of drinking water

Green Drop Rates wastewater treatment

Emfuleni

96.80%

Excellent

66.90%

Average

Lesedi

92.92%

Excellent

70.20%

Average

Midvaal

84.10%

Good

81.70%

Good

Blue and Green Drop Scores - West Rand DM

Municipality

Blue Drop Score Rates quality of drinking water

Green Drop Rates wastewater treatment

Merafong

92.21%

Excellent

77.80%

Average

Mogale City

98.79%

Excellent

66.70%

Average

Rand West City

97.54%

Excellent

66.10%

Average

Local Government Climate Change Support Program 2016 Climate Change Indicators for Gauteng