The Hydrosphere
Distribution of fresh water on Earth
Earth Water
97%
Saltwater
3%
Fresh Water
Fresh Water
87%
Lakes
2%
Rivers
11%
Swamps
Fresh water on the earth's surface
69%
Glaciars
30%
Subsoils
1%
Surface
35 million km2 of fresh water
Only 0.2 million km2 are available for human uses
The Hydrological Cycle
Distribution of fresh water on Earth
Groundwater stored
Filtrations
Rivers and Lakes
Ice and snow
Precipitation
Steam and water clouds
Condensation
Evaporation
Oceans
Did you know...?
The Spanish citizen consumes on average 171 liters of water per day.
CHINA, INDIA AND USA consume 38% of fresh water in the world.
An open faucet uses 12 liters of water per minute.
Fresh water consumption
75%
farming
12%
homes
10%
industry
3%
services
The United Nations estimate that by 2030 there will be a global freshwater deficit of 40%
Water footpring
Volume of fresh water used to produce a good or service
How many liters of fresh water are needed to produce ...?
1 kg of viel
16.000 liters
1 lt of beer
298 liters
1 kg of pasta
16.000 liters
1 pair of jeans
8.000 liters
1 cup of coffee
130 liters
Tips to reduce consumption
In a year we save up to 30.000 liters taking a shower instad of a bath.
Closing the taps well prevents the dripping of 90 liters a week.
A double-discharge system saves up to 6 liters in each use.
Domestic appliances with an energy label A save up to 50% of consumption water and electricity.
Sources: National Statistical Institute, United Nations, FACUA and www.waterfootprint.org