Carbon emissions reduction initiatives have received considerable attention at the corporate level. Companies such as Daimler, Apple and Amazon have publicly declared their goal of becoming carbon neutral, or net zero in a near future. They are responding to a growing demand for sustainable products and services. Companies have a variety of options for carbon emission reductions available to them, including internal reductions such as adopting renewable energy, as well as buying carbon offsets. This raises the question of whether consumers perceive the different types of carbon emission reductions as equivalent, or whether they favor the implementation of internal measures. We investigate this issue empirically through surveys and incentive-compatible discrete choice experiments. We find clear consumer preferences and willingness to pay for companies to reduce their carbon footprint. These are particularly strong when companies internally reduce their controllable emissions rather than buying carbon offsets for these emissions, and it is especially true for eco-conscious consumers. Consumers place roughly the same value, however, to internal reductions in controllable emissions, and buying offsets for the same amount of uncontrollable emissions