It was to no avail: the participants failed to agree on a global mechanism to put a price on emissions, making it harder for energy firms to justify big investments in unproven green technologies, such as advanced biofuels or carbon capture and storage.
In the lab Raade picks up paper cups containing globs of green and black glass, two promising mixtures that Halotechnics hopes eventually to use in a prototype energy storage system the company plans to bring online in 2015.