We pollute our air, our rivers, our seas and out soils. Then we wonder why we have problems.
Even in the very remote possibility that the sceptics are right – which is totally unlikely as it is happening faster than expected according to the IPCC; we still need to take greenhouse gasses seriously:
We have two forces jeopardising sensible action on climate change:
1. The global financial mess
2. and the negative influence of the oil, gas and coal industries who ontinue to fight against any regulations.
Some of the other serious impacts of global pollution are:
Superphosphate which is made water soluble by treating it with sulphuric acid is rapidly converted back to insoluble to calcium phosphate and is not available to plants and in iron-rich soils it is just as rapidly converted to equally insoluble iron phosphate, and a related action occurs in volcanic soils. CSIRO estimated many years back that ten BILLION dollars worth of P is now held in our soils.
And superphosphate releases it’s sulphuric acid which to accumulates in the subsoil of many soil types to prevent root growth and kill earthworms and it flows through free draining soils hence our Murray mouth acid sands.
Ocean acidification is also a major issue for this century and its impact on the food industry and world food supply. This is due both to atmospheric CO2 and the breakdown products of chemical fertilization. Superphosphate, ammonium sulphate and urea are the main contributors. Examples of this damage are
• Destruction of reefs off Bali caused by fertilised rice paddy run off
• Barrier Reef damage caused by hyper-nutrition and acidification
• The acid sands in the lower Murray
Overloading the earth’s nitrogen cycle. There are huge dead patches in oceans from over use of fertilizer.
The natural soil system is simple: more carbon in soil = more bacteria = more nitrogen = more plant growth = more carbon that is tied up and not in the air. And this encourages earthworms which aerate soil.
Jelly fish are on pest species that benefits from ocean acidification and over fishing. Interestingly there is are low numbers of jellyfish/stingers around the waters of Vanuatu and Vanuatu bans the use of chemical fertilization. Is this a coincidence?
I used to swim competitively in masters swimming and participated annually in the swim around Delphin Island in West Lakes, Adelaide. The jelly fish there (non stinging) were so thick in some patches that it was actually like clawing your way through jelly rather than swimming. Totally gross! The lake was surrounded by heavily fertilised manicure lawns as well as being at the end of one of Adelaide’s main stormwater drainage systems.
We pollute our air, our rivers, our seas and out soils. Then we wonder why we have problems including climate change, ocean acidification and pest species.
envirojean
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