After the project ended, the DSA has remained but lost much of its initial momentum. Research and innovation 3. Low-carbon economy 6. Environmental protection and resource efficiency 7. The programme has existed since Interreg IV (2007-13). In the period 2007-13, the OKS programme supported about 125 cross-border projects, which brought together around 400 partners from Denmark, Norway and Sweden (mainly universities, regions and large municipalities).