The necessity of protecting the natural world

http://www.sciencealert.com.au/opinions/20070211-16529.html

Humans already use most of the land on the planet. In many places in the world the competition is between the land-poor and the land-rich. This is a political problem which needs to be solved without further trashing the natural environment. Some systems are more equitable than others and the Anglo-Celtic system used in most English speaking countries is worse than most. We humans have to share the land we already have more equally with each-other. If we insist on growing our population then the competition for land will be increasingly severe. We have already taken enough from other creatures and need to give some (a lot) back. Land for wildlife is not a luxury. The perception that it doesn't 'do' anything needs scientific countering with a thermodynamic explanation. That explanation is that Life is the only force that can reorder spent energy.

The First Law of Thermodynamics states that energy cannot be created but is never lost. However the Second Law of Thermodynamics states that energy is transformed by use and that you can never make it how it was before. (You can't have your cake and eat it.) Industrial society provides a good example with the idea that a machine can make a sausage out of a pig, but it cannot make a pig out of a sausage. Once you have turned the pig into sausage for human consumption the energy in the sausage will never be pig again. It will be human waste. The passage of the cake or the pig into something less coherent is part of the usual flow of chemical and physical reactions in a process known as ‘entropy increase’ or a tendency to ‘disperse’.

Otherwise the planet and the atmosphere would be completely filled with sludge and debris. This is the way that ecology and the life-cycles that make up an eco-system are able to temporarily make order from disorder. Industrial manufacturing can grossly restructure dead things, but life is the only process that is able to do this efficiently, keep the process going, and reproduce itself.

So, the sausage is, indeed turned into pigs again, because our biosphere is "pumped" with a continuous input of solar energy.

We are, of course, doing damage faster than the biosphere can repair itself. But that won't last forever. Either we will bring ourselves into equilibrium, or it will be done for us the hard way. Actually, the hard way seems inevitable at this point. Either way, a new biosphere will arise from the old one. Eventually.