A controversial plan to store CO2 deep under Lake Maurepas was intended to greatly limit greenhouse gas emissions from a nearby industrial plant, but a new proposal raises the possibility that significantly less will be sequestered.

The company's revised proposal to state regulators has the potential to allow the hydrogen and ammonia plant in Ascension Parish to become one of the largest industrial emitters of greenhouse gases in Louisiana during its first years of operation.

Air Products, the company behind the project, has battled nearly four years of community opposition over plans to inject and permanently store CO2 and other greenhouse gases from the complex under Lake Maurepas. It says the injection would prevent 95% of those greenhouse gases from reaching the atmosphere, where t

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