Carlos and I attended the 2nd De Beers Carbonation Workshop in Johannesburg, South Africa. The meeting was attended by world experts on mineral carbonation and related fields. Carlos visited the Voorspoed diamond mine and joined the field trip around Cullinan diamond mine. He presented as excellent talk on the role of cyanobacteria in carbonate precipitation with a focus on microbial surface reactivity. I presented his work on the direct capture of atmospheric CO2 into tailings from the Baptiste deposits in the Decar nickel district in central British Columbia. We learnt a great deal and planned field pilot projects with collaborators Sasha, Greg and Gord. The workshop will no doubt lead to fantastic research in the coming year!