Torstai 24.5.2018 klo 11:13
We have heard the news about water in Cape Town area being close to finis, about droughts and wildfires in California, Australia, Portugan etc. We have also heard predictions that climate change causes droughts in many new areas.
Because of these news about too little water in many parts of the world, people in Scandinavia, Germany, U.K. etc. are accused of using unnecessarily big amount of water per day. But hey, it rains a lot in all of those countries normally, and the water use by agriculture and people does not normally lead to shortage of water. I do not understand why people should feel guilty about using a commodity, which is not diminished by use. It is more or less the same as saying: "Since there are people, who are starving in the world, you shall also starve."
The situation is different in places, where water use is greater than water supply. It has been estimated that e.g. in California water use is 8-10 times greater than its yearly supply. Because of irrigation in agriculture, the Dead Sea is rapidly losing its water. The excessive water use presently generates problems in Australia, Texas, Mediterranean countries etc. The common problem in those places is that people are using the water as they would in places, where it is plentiful. In those areas one should, e.g., cultivate plants, which need little water. Israel is, for example, producing a lot of avocados, which is a very water-needing plant. That does not really fit together with drying Dead Sea. Also, innovations to replace WCs (even in urban areas) are urgently needed in dry places.
In conclusion, water-saving solutions should be made in areas having water shortage, but people in North-West Europe can use copious amounts of water in good conscience - the availability of water in South Sudan does not increase if a person saves water by not taking a shower in Turku.