This article considers the transfer of cost‐reducing technology in the context of contributions to climate protection. We analyze a two‐period public goods model where later contributions can be based on better information, but delaying the mitigation effort is costly because of irreversible damages. Investments in technology affect the countries' timing of contributing. We show that countries have an incentive to provide cost‐reducing technology as this can lead to an earlier contribution of other countries and can therefore reduce a country's burden of contributing to the public good. Our results provide a rationale for the support of technology sharing initiatives.