Would a government bureaucrat have mandated this solution to CO2 emissions?

This article in QZ.com reports that a firm in India has found new way to reuse CO2 released when it burns coal. Here are some questions to consider.

1. Did the firm spend R&D to "be green" or to increase profit?
2. When would R&D spending and the adoption of new green technologies be greater: when firms may emit CO2 without paying an emissions tax or when they must pay an emission tax for each ton emitted?