According to my colleague Serge Salat from Paris, as much as 40% of Chinese GDP growth is driven by investments in new buildings and associated infrastructure. However, there are now 80 million empty apartments. This bubble is going to burst, no doubt. But from a resource use perspective, this means up to 40% of Chinese growth that is, in turn, a major driver of global growth, is based on sinking money into cement. For the past 20 years over 50% of all cement use was in China. China used more cement in the three years 2011-2013 than the USA used in the whole of the c.20th. Cement demand in China is dropping, according to the largest cement company HolcimLaFarge. Mix all this together, add so political salt, and you get a looming crisis. Is anyone aware of the oncoming brick wall that Chinese growth is inevitably going to hit relatively soon?