This Thomson Reuters article was featured a few days after the announcement by Harvard of their plans for Sweden, and includes a several critical voices.
Quotes by Niclas Hällström, WhatNext?:
“There is no merit in this test except to enable the next step. You can’t test the trigger of a bomb and say ‘This can’t possibly do any harm’,” said Niclas Hällström, director of the Swedish green think-tank WhatNext?
“Swedish society is increasingly calling for real, immediate solutions to climate change,” he said – such as a rapid transformation away from fossil fuels and toward a zero-carbon society.
He said the Harvard project “represents the polar opposite”, as it could create the impression that continuing use of fossil fuels is possible.