The genetically engineered hormone: recombinant bovine somatotropin (rBST) may have hidden environmental benefits, according to new research in the US.
However, the use of the recombinant supplement has been
controversial. While it is used in the United States, it is banned in Canada,
parts of the European Union, Australia and New Zealand. So if this is the
solution to cut greenhouse gases remains to be seen.
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