We have replaced the tobacco RbcL gene with transgenic loci containing two or three
cyanobacterial genes encoding the S. elongatus Rubisco
large subunit (Se LS), small subunit (Se SS) either alone or with the putative chaperone RbcX or a gene encoding the carboxysomal protein M35.
But pollution also covers hundreds of chemicals which are fine or even beneficial at low levels but which if released in
large quantities or in problematic circumstances cause «harm» — like phosphorus (grows your veges but also leads to toxic
cyanobacterial blooms which kill cattle), nitrogen (grows crops kills many native species of plants and promotes weed growth costing farmers), copper (used as an oxygen carrier by gastropods but in high concentrations kills the life in sediments which feed fish), hormones like oestrogen (essential for regulating bodies but in high concentrations confuse reproductive cycles especially with marine life) or maybe molasses from a sugar mill (good for rum but when dumped into east coast estuaries used to cause oxygen sag in estuaries leading to massive fish kills).