Alain Sepeda <[email protected]> wrote: I've read desperate environmentalist calls about Oxygen that was > disaprearing on earth... >
That is actually plausible. People are burning fossil fuels, exhausting a large fraction of the carbon that was sequestered underground. That forms CO2, which depletes oxygen from the atmosphere. I have read that a measurable amount has been depleted. We may run low on oxygen before we use up all available sources of carbon fuel. > on the other side people saying that we will soon lack of water (despite > it is the most recyclable good on earth), . . . > We have already run short of water. That is to say, we are short of clean, potable, non-salt water. Yes, water is recyclable, but there is also a huge demand for it, and the recycling technology (desalination and removing pollution) uses a great deal of energy. So, the total amount of water available is limited, and it comes at a high cost in pollution from energy generation. Just become something is recyclable, that does not mean the cost is low or recycling does not cause significant pollution. Desalination with cold fusion would not produce pollution. > for example on water shortage, it is clear that water shortage is in fact > just energy shortage . . . > It is a shortage of energy, equipment and infrastructure. And money, which is important. - Jed
