You are warmly invited to join us in July 2021 for this online edition of the International solar fuels conference. The first meeting of this internationally renowned conference was held in Uppsala, Sweden in 2015, and since then the meetings have been a highlight for the global solar fuels community. The 2021 conference will host some of the leading solar fuels researchers from around the world. It promises to be a great forum to bring together research leaders and young scientists to discuss the main issues surrounding climate change and energy supply.