En réponse à :
Un commentaire paru sur le site de Spencer et qui me semble cerner le vrai problème :
November 18, 2010 at 9:13 AM
I work in power station development. Traditional stuff like geothermal. Water is a huge issue, even in places where there is a lot of it such as New Zealand. In many places the water has been fully allocated to existing users/uses and in other countries such as Chile, specifically in the north, there is basically no water.
Water is huge issue that not many people think/know about.
The World Business Council for Sustainable Development (I only quote them because these are their numbers, no other affiliation or interest etc) has calculated it takes 70 litres of water to grow an apple, 140 litres to get a cup of coffee and 2,700 litres to make a cotton shirt. These numbers are for the full process end to end and include natural rainfall.
I raise this as it poses an interesting issue. There is clearly plenty of water, but most of it is sea water. We have aquifiers, but many are under significant pressure. We can convert sea water to freshwater, but that takes energy. Producing the energy takes water.
Water is a phenominal issue right now. All this climate change stuff is a distraction, I wish people would focus on some real challenges like making sure people have access to clean water and that it is used efficiently and effectively.
Combien de milliards sont « jetés » pour cette « farce » de réchauffement climatique ?
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