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To optimize the inventory level and technology investment under a carbon tax, cap-and-trade and strict carbon limit regulations, mathematical models are evolved. This paper focusses warehouse operations and transportation logistics systems as the sources of emissions. This study signifies that under the carbon regulations, profit and carbon emission reduction is proportional to the green technology investment and green technology promotion betides demand increase. This read-up-on also scrutinizes that for the carbon tax policy, the carbon price determines the total profit and the decreasing emission level ensures a lofty profit. On the contrary, carbon cap and carbon limit exempt total profit extremely.