Europe decided to authorize glyphosate based on experiments
carried out by companies, then described in secret reports written
and submitted by companies. These reports have become public and show
important flaws; they don't prove that glyphosate is safe.
No wonder the companies kept them secret.
Clearly these regulatory decisions should not accept secret studies
carried out by companies with an interest in the outcome.
For medicines, I've argued that tests of their effectiveness and
safety should be independent of the companies involved with producing
and selling them.
Perhaps that should apply to pesticides, too.
It is pertinent that one report says that glyphosate caused cancer
specifically when mixed with other chemicals, as occurs in Roundup.
That one study may not be proof enough, but shows the need to test
Roundup as well as pure glyphosate.