Marine and permafrost-based methane hydrates are the largest existing fossil carbon resource, whereby the marine deposits far outweigh the terrestrial ones. Their broad geographic distribution, especially in comparison to oil and conventional gas, make them a promising future source of energy....

With its Industrial Carbon Management Strategy, the European Commission has defined an initial framework for the future promotion of CO2 capture, storage and use in the EU. In particular, negative emission technologies like direct air capture promise to play a key long-term role on the path...