But without a significant technological advance such projects will be expensive and may take many years to have any significant effect.

NEWYORKER: The Climate Fixers

Yet in order to have any significant effect on demand for low carbon energy technologies, the price of carbon would need to be higher than any political economy has been willing to bear.

FORBES: The Carbon Tax, Then and Now

But the group size didn't seem to have a significant effect on productivity, Google found.

WSJ: Companies Try to Make the First Day for New Hires More Fun