2.1 - California

Question 1

What proportion of water is used by agriculture?

Answer 1

85%

Question 2

Where is Owens Valley?

Answer 2

Eastern California

Question 3

Mono Lake levels have risen by how much?

Answer 3

9 metres

Question 4

Who started the rewatering of the Owens River?

Answer 4

David Nahai

Question 5

Who said: ‘If you don’t get the water, you won’t need it’?

Answer 5

Bill Mulholland

Question 6

Where is the water supply high in California, and where is the demand high?

Answer 6

The supply is high in Northern California

The demand is high in Central and Southern California

Question 7

Where does the seasonal melt water that supplies Los Angeles come from?

Answer 7

Sierra Nevada

Question 8

90% of local residents need to reduce their water use by how much?

Answer 8

25%

Question 9

What are they spending $2.7 bn on?

Answer 9

Sites Reservoir (Sacramento)

Question 10

What are the physical factors reducing water supply?

Answer 10

• Prolonged droughts, such as 1987-1992 and 2005-2008; possibly more
frequent / severe in the future.
• Worsening climate change, leading to less and / or more irregular precipitation
• Reduction of Sierra Nevada snowpack, reducing spring meltwater