Virtual Water Import
To harvest 1 kg (2.2 pounds) of wheat, you need 1,000 liters (250 gallos) of water.
In comparison with wheat, rice needs 1.8 times more water, poultry needs 2.25 times more, pork 3 times more, and beef 10 times more.
If a nation imports these agricultural products from other countries, it is virtually importing water contained in those products.
According to this calculation, Japan imports about 64 billion cubic meters (2 trillion 260 billion cubic feet) of water. When subtracting water included in products Japan exports from this imported water, we can get a net amount of imported water. And, it was found that Japan is the largest net water importer in the world, since 120 million Japanese need foods grown in foreign countries due to higher prices of Japanese farm products.
The order of nations in terms of a net amount of imported water:
No.1 JAPAN
No.2 Sri Lanka
No.3 Italy
No.4 South Korea
No.5 Netherlands
But from what countries how much water is Japan importing?
Water Exporter to Japan Qty. of Water
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No.1 USA 38.9 billion tons
No.2 Australia 8.9 billion tons
No.3 Canada 4.9 billion tons
No.4 Brazil/Argentina 2.5 billion tons
No.5 China 2.2 billion tons
N.6 Denmark 1.4 billion tons
No.7 Thailand 1.3 billion tons
No.8 South Africa 0.3 billion tons
No.9 Others 3.6 billion tons
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As Japan has its inherent water resources in use of 90 billion cubic meters, Japanese people consume total 150 billion cubic meters of water. It means that Japan relies on foreign water in a ratio of 40% of all the consumed water within Japan.
This situation also implies that Japan is the most vulnerable country in the world against climate changes which might cause droughts and dry weather on the earth, especially in North America, Australia, South America, China, and even Europe.
Anyway there are great virtual corridors of water from various regions in the world to Japan. Japan might be the lowest place on the earth. Every drop of water falling in the world gets together in Japan. And something more than water might do.
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Gen 8:20 And Noah builded an altar unto the LORD; and took of every clean beast, and of every clean fowl, and offered burnt offerings on the altar.
Gen 8:21 And the LORD smelled a sweet savour; and the LORD said in his heart, I will not again curse the ground any more for man's sake; for the imagination of man's heart is evil from his youth; neither will I again smite any more every thing living, as I have done.
Gen 8:22 While the earth remaineth, seedtime and harvest, and cold and heat, and summer and winter, and day and night shall not cease.