Injecting CO2 into an underground reservoir would certainly change the local environment and thus affect the organisms that live there. Some will thrive, and others will suffer. While we should minimize such impacts, they cannot be avoided completely. The same happens when one plows a field, builds a house or a road, or waters a lawn.

There's an overemphasis on conservation and other idyllic energy sources that can be harmful in that it hampers new technology and innovation.

Either you abandon fossil fuels, or you find a way to get that carbon back.

Klaus Lackner Quotes